TY  - BOOK
AU  - Chang,Jen-hu
TI  - Climate and agriculture : : an ecological survey 
U1  - F/C 630 CHA 
PY  - 1968///]
CY  - Chicago : 
PB  - Aldine Pub. Co. , 
KW  - Crops and climate
N1  -  Bibliography: p. 247-290
ER  -