TY  - BOOK
AU  - Billings,W.D.
TI  - Plants, man, and the ecosystem
AV  - QK901 .B5 1970
U1  - 581.5 
PY  - 1970///]
CY  - Belmont, Calif.
PB  - Wadsworth Pub. Co.
KW  - Plant ecology
KW  - Écologie végétale
KW  - Botany
KW  - Ecology
N1  - First and 3d ed. published under title: Plants and the ecosystem; Bibliography: p. 149-151
UR  - http://www.archive.org/details/plantsmanecosyst00bill
UR  - http://www.openlibrary.org/books/OL5696265M
ER  -