TY  - BOOK
AU  - Gates Frank C
TI  - Field manual of plant ecology
T2  - McGraw-Hill publication in the botanical sciences
U1  - I:5, H91-;1 
PY  - 1949///
CY  - New York    
PB  -  McGraw-Hill book       
KW  -  Plant ecology
KW  - Botany
ER  -