TY  - BOOK
AU  - Eckholm, Eric P. Eckholm
TI  - Losing ground: environmental stress and world food prospect
U1  - 333.75 21st
PY  - 1976///
CY  - New York
PB  - W.W. Norton
KW  - Agricultural ecology; Man-Influence on nature; Food supply; Soil erosion
ER  -