TY  - BOOK
AU  - Weaver,John E.
AU  - Clements,Frederic E.
TI  - Plant ecology / 
T2  - McGraw-Hill publications in the botanical sciences
U1  - 581.5 
PY  - 1938///
CY  - New York : 
PB  - McGraw-Hill, 
KW  - Ecologia vegetal
ER  -