Environmental science - Arms, Karen. 4 0 16; 5 (Philadelphia : Saunders College Pub., 1990)
Map on front lining papers.
Includes bibliographical references (p. 450-460) and index.
Keywords: 2 -- 0; 6; Study and teaching (Secondary).;Environmental aspects;Study and teaching (Secondary).;Study and teaching (Secondary).;Study and teaching (Secondary).;Study and teaching (Secondary). -- Ecology;Environmental education.;Pollution;Environmental protection;Natural resources;Land use -- 20; 20; 2