@book{13479,
	author = {Azam-Ali, S. N. and Squire, G. R. and ebrary, Inc.},
	title = {Principles of tropical agronomy},
	publisher = {CABI Pub.,},
	year = {c2002.},
	address = {Wallingford, Oxon, UK ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10256986}
}