00351cam a2200169   450000500170000024500290001702000050004610000240005104400130007525000090008804100080009730000180010550000050012383000050012826000290013308200190016220260711133811.0  aEl Mètodo Cientificob  a  aRosenblueth, Arturo  aMéxico  a1ª   aspa  a94 p. 22 cm.   a  v  aMéxico bCONACYTc1971  a001.42bR813m