@book{64061,
	author = {Acosta Lozano, Concepción  and Celedon Santiago, Rafael},
	title = {Plan de mercadotecnia Cajamag /},
	publisher = {Corporación Unificada Nacional de Educación Superior,},
	year = {2000.},
	address = {Santa Marta: },
	edition = {                   }
}