TY  - BOOK
AU  - Billings,W.D.
TI  - Plants, man, and the ecosystem
T2  - Fundamentals of botany series
U1  - 581.7 23
PY  - 1972///
CY  - Belmont, Calif.
PB  - Wadsworth Pub. Co.
KW  - Plant ecology
N1  - First and 3d ed. published under title: Plants and the ecosystem; Includes bibliography( p. 149-151) and index
ER  -