Nuttonson, Michael Y. <br/><br/>
Ecological crop geography of Germany and its  agro-climatic analogues in North America. 

 - Washington :  American Institute of Crop Ecology,  1949. 
 - 36p.  : ill.  ; 27cm. 
 - International agro-climatological series study; 12 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture<br/>Germany<br/>Crops and climate<br/>Climate
<br/><br/><label>LC Class. No.: </label>PAM SB187.G4N8