@book{81985,
	author = { P.Gulick and D.H.Van Sloten.},
	title = {Directory of germplasm collections 6.1. Tropical and subtropical fruits and tree nuts.},
	publisher = {I.P.G.R.I.},
	year = {1984},
	series = {AGPC : IBPGR/84/85},
	address = {Rome}
}