TY  - BOOK
AU  - Nuttonson,Michael Y.
TI  - Ecological crop geography of Poland and its  agro-climatic analogues in North America
T2  - International agro-climatological series study; 2
AV  - PAM S469.P7N8 no.2 
PY  - 1947///
CY  - Washington
PB  - American Institute of Crop Ecology
KW  - Agriculture
KW  - Poland
KW  - Crop zones
KW  - Climate
ER  -