00357nam a2200133Ia 45000010005000000080041000050820014000461000022000602450066000822600030001483000011001786500013001896500021002021188190219s1973    ck     gr     000 0 spa d0 a580bP1291 aPaez Perez Carlos10aBiologia vegetal aplicada a la educacion /cPaez Perez Carlos  aBogotá :bRetina,c1973  a340 p.14aBIOLOGIA24aBIOLOGIA VEGETAL