Plants, man, and the ecosystem /
Billings, W. D. 1910-
Plants, man, and the ecosystem / W. D. Billings. - 2nd ed. - Belmont, Calif. : Wadsworth Pub. Co. , 1972 - x, 160 p. : illus. ; 23 cm. - Fundamentals of botany series . - Fundamentals of botany series .
First and 3d ed. published under title: Plants and the ecosystem.
Includes bibliography( p. 149-151) and index.
Plant ecology.
581.7 / BIP 1972
Plants, man, and the ecosystem / W. D. Billings. - 2nd ed. - Belmont, Calif. : Wadsworth Pub. Co. , 1972 - x, 160 p. : illus. ; 23 cm. - Fundamentals of botany series . - Fundamentals of botany series .
First and 3d ed. published under title: Plants and the ecosystem.
Includes bibliography( p. 149-151) and index.
Plant ecology.
581.7 / BIP 1972