@book{62531,
	author = {Calderón Yurany Jasbleidy and Sergio Aldemar Hurtado },
	title = {Sistema de infromacion para la empresa Marketing  /},
	publisher = {Corporación Unificada Nacional de Educación Superior - CUN,},
	year = {2003.},
	address = {Florencia: (Colombia)},
	edition = {                   }
}