Food Chains and Ecosystems /
Schwartz, I. George
Food Chains and Ecosystems / George I. Schwartz, Bernice S. Schwartz - 1st ed. - New York : Doubleday Company, c1974. - viii, 109 p. : ill. ; 23 cm.
Includes: Index
0385033575
Food Chains
574.5 / SCH
Food Chains and Ecosystems / George I. Schwartz, Bernice S. Schwartz - 1st ed. - New York : Doubleday Company, c1974. - viii, 109 p. : ill. ; 23 cm.
Includes: Index
0385033575
Food Chains
574.5 / SCH