Farming systems in the tropics
RUTHENBERG, Hans
Farming systems in the tropics - 2nd ed - Oxford 1976 - 366p
AGRICULTURE -- TROPICS
AGRICULTURE -- TROPICS
631.091 3 R98F
Farming systems in the tropics - 2nd ed - Oxford 1976 - 366p
AGRICULTURE -- TROPICS
AGRICULTURE -- TROPICS
631.091 3 R98F