Ecología
Subtitle: salvemos el planeta Tierra : enseñanza media básica
By: Mario Gutiérrez ; ilustraciones de Martha Avilés
Contributors: Avilés, Martha
Publisher: Limusa/Grupo Noriega Editores
Published: 1992
Place of publication: México, D.F
Language: spa
Number of pages: 181
ISBN-13: 9789681842710
Subjects: Environmental education; Nature; Ecology; Study and teaching; Effect of human beings on