@book{9312,
	author = {Abrahamsen, Martin A. and E.U.A. Department of Agriculture.},
	title = {Tendencias del cooperativismo},
	publisher = {Centro Regional de Ayuda Técnica,},
	year = {1967},
	series = {USDA. Department of Agriculture. Leaflets},
	address = {México, D. F. :}
}