TY  - BOOK
AU  - FAO,
TI  - FAO - Unesco Soil Map of the World 1 : 5000000 Vol. VII North America
SN  - 923101126X
U1  - 631 
PY  - 1975///
CY  - Paris
PB  - Unesco
KW  - Techniques, equipment & materials
ER  -