Impact of land degradation on future world food production
DRENGE, Harold E
Impact of land degradation on future world food production - Washington 1982 - 33p - United States Department of Agriculture. Economic research s .
FOOD SUPPLY
AGRICULTURE -- ECONOMIC ASPECTS FOOD SUPPLY
338.19 D76I
Impact of land degradation on future world food production - Washington 1982 - 33p - United States Department of Agriculture. Economic research s .
FOOD SUPPLY
AGRICULTURE -- ECONOMIC ASPECTS FOOD SUPPLY
338.19 D76I