Ecological crop geography of Poland and its agro-climatic analogues in North America

Nuttonson, Michael Y.

Ecological crop geography of Poland and its agro-climatic analogues in North America - Washington : American Institute of Crop Ecology, 1947. - 12p. : ill. ; 27cm. - International agro-climatological series study; 2 .


Agriculture
Poland
Crop zones
Climate

PAM S469.P7N8 no.2
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