TY  - BOOK
AU  - Karl  H. W. Klages
TI  - Ecological crop geography
U1  - 581.526 
PY  - 1942///
CY  - New York
PB  - Macmillan and Co
N1  - Karl  H. W. Klages: Ecological crop geography.  New York.  Macmillan and Co, 1942.--(581.526KLA)
ER  -