na INLIS000000000006038 0010-1021000872 Alley Farming in the Humid and Subhumid Tropics. Proceedings of an International Workshop held at Ibadan, Nigeria, 10 - 14 March Ottawa The International Development Research 1989 X, 251p ill; 25 cm 631.58 631.58 ALLEY CROPPING TROPICS. 5421