@book{21952,
	author = {Douglas, Johnson E, and Centro Internacional de Agricultura Tropical. CIAT},
	title = {Programas de Semillas: Guía de Planeación y Manejo /},
	publisher = {CIAT,},
	year = {1982.},
	series = {Ciat09SSe-6(82)},
	address = {CALI :}
}