@book{11505,
	author = {Nair, P. K. Ramachandran. and Consejo Internacional para Investigación en Agrosilvicultura.},
	title = {Soil producitvity aspects of agroforestry},
	publisher = {ICRAF,},
	year = {1984},
	series = {Science and practice of agroforestry},
	address = {Nairobi :}
}