00590nam a2200193Ia 4500 256215 20210210062653.0 010614e2000 mx gr 000 0 spa d 968-23-2212-X 19.95 PUCPR ev 21 333.707 C7375 La complejidad ambiental Enrique Leff ... [et al.]. México, D.F. Siglo Veintiuno Editores 2000. ix, 314 p. 21 cm. Environmental education Local 92384 Ecology Study and teaching. 89958 Leff, Enrique. Local 124440 184055 184055 0 0 ddc 0 333_707000000000000_C7375 0 evci 131899 10 10 1 2016-05-27 19.95 365408 0 333.707 C7375 80000002128398 2016-05-27 00:00:00 r:256215 6