@book{8642,
	author = {Workshop on the Global Status of and Prospects for Integrated Pest Management of Root and Tuber Crops in the Tropics and Hahn, S. K. and International Institute of Tropical Agriculture.},
	title = {Integrated pest management for tropical root and tuber crops :},
	publisher = {International Institute of Tropical Agriculture,},
	year = {c1990.},
	address = {Ibadan, Nigeria :}
}