@book{135109,
	author = {El-Swaify, S.a. and Walker, T.s.},
	title = {Dryland management alternatives and research needs for alfisols in the Semi-Arid Tropics},
	publisher = {International Crops Research Institute for the Semi-Arid Tropics},
	year = {1984},
	address = {Andhra Pradesh},
	note = {An interpretative summary of the Consiltants Workshop on the state of the art and management alternatives for optimizing the .. 1-3 dic. 1983}
}