Billings, W. D. 1910- Plants, man, and the ecosystem [electronic resource] / [by] W.D. Billings.. — 2d ed.. — Belmont, Calif., : Wadsworth Pub. Co., [1970]. — x, 160 p. : illus., maps. 24 cm. - Fundamentals of botany series.
First and 3d ed. published under title: Plants and the ecosystem.
Bibliography: p. 149-151.
70093538
0240100 DNLM
Plant ecology.
Écologie végétale.
Botany.
Ecology.
QK901 / .B5 1970
581.5
QK 901 / B598p 1970