MATON, ANTHEA ECOLOGY : EARTHS LIVING RESOURCES - 2ND ED. - ENGLEWOOD Estados Unidos PRENTICE HALL 1994 - 160 ISBN: 0132255588 LCCN: 76678 Subjects--Topical Terms: CONSERVACION DE LA VIDA SILVESTRE-LITERATURA JUVENILECOLOGIAECOLOGIA-LITERATURA JUVENIL Dewey Class. No.: 574.5