https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=copydate%3A%221971%22&sort_by=relevance&format=rss 12 0 50 ISBN:9688560375 https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=3198 By Toffler, Alvin.
México Plaza y Janes 1971 .
438 p. 18 cm. 9688560375

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]]> https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=3198 ISBN:061316105 https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=2596 By Piaget, Jean.
New York Harper Ty Row 1971 .
153 p. 20 cm. 061316105

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]]> https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=2596 ISBN: https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=2159 By Ortleb, Edward Cadice, Richard.
St. Louis Missouri Milliken publishing Co. 1971 .
40 p. il.; 28 cm. , Transparencias

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]]> https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=2159 ISBN: https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=2029 By Rosental, M. M. Iudin, P. F..
San Salvador Tecolut 1971 .
498 p.; 24 cm.

]]> Place hold on Diccionario Filosófico

]]> https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=2029 ISBN: https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=1200 By Lenin, V.I..
San Salvador Tecolut 1971 .
287 p. 24 cm.

]]> Place hold on Materialismo y Empiriocriticismo: notas críticas dobre una filosofía reaccionaria

]]> https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=1200 ISBN: https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=1199 By Harnecker, Marta.
San Salvador Ediciones Chiltic Amat 1971 .
341 p. 19 cm.

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]]> https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=1199 ISBN: https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=1058 By Mudi, Juan.
México D.F. Editorial Pax - México 1971 .
117 p. 20 cm.

]]> Place hold on El éxito en la Vida

]]> https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=1058 ISBN: https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=1047 By Navarrete de, Ifigenia M..
México D.F. Fondo de Cultura Económica 1971 .
337 p. 23 cm.

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]]> https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=1047 ISBN: https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=634 By Snedecor, George W.Cochran, William G..
México D.F. Compañia Editorial Continental 1971 .
703 p. il.; 23 cm.

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]]> https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=634 ISBN: https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=367 By Strasburger, E. y otros.
Bilbao Editorial Marín 1971 .
651 p. il.; 25 cm.

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]]> https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=367 ISBN: https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=357 By Singer, Ferdinand L..
Ediciones del Castillo 1971 .
636 p. il.; 24 cm.

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]]> https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=357 ISBN: https://biblioteca.utla.edu.sv/cgi-bin/koha/opac-detail.pl?biblionumber=91 By Rosenblueth, Arturo.
México CONACYT 1971 .
94 p. 22 cm.

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