TY - BOOK ED - American Institute of Crop Ecology TI - Ecological crop geography of the Ukraine and the Ukrainian agro-climatic analogues in North America T2 - International agro-climatological series study; 12 AV - PAM S469.R9A5 PY - 1947/// CY - Washington PB - American Institute of Crop Ecology KW - Agriculture KW - Ukraine KW - Crops and climate KW - Climate ER -