TY  - BOOK
AU  - Nutton,Michael Y.
TI  - Ecological crop geography of China and its agro-climatic analogues in north America
T2  - International agro-climatological series study; 7
AV  - PAM SB187.C5N8 no.7 
PY  - 1947///
CY  - Washington
PB  - American Institute of Crop Ecology
KW  - Field crops
KW  - China
KW  - Crops and climate
KW  - Crop zones
ER  -