00431cam a2200169 450000500170000024500510001702000180006810000620008604400160014825000090016404100080017330000180018150000050019983000050020426000380020908200140024720260711133924.0 aManual de Laboratorio de Química General Ib a9789992334140 aUniversidad Centroamericana josé Simeón Cañas (UCA) aEl Salvador a1ª aspa a125 p. 22 cm. a v aSan Salvador bUCA Editoresc2002 a540bU58m