TY  - BOOK
AU  - Eckholm,Erik P.
TI  - Losing ground: environmental stress and world food prospects 
SN  - 0393064107
PY  - 1976///
CY  - New York
PB  - Norton
KW  - Man
KW  - influence on nature
KW  - Food supply
KW  - Soil erosion
KW  - Agricultural ecology
N1  - Includes index; Bibliography : p. 203-219
ER  -