@book{44187,
	author = {Guillén Román, Miguel Angel.},
	title = {Aspectos sociales de las cooperativas},
	publisher = {Ministerio de Agricultura, Pesca y Alimentación,},
	year = {1989},
	series = {Biblioteca básica del agricultor},
	address = {Madrid :},
	edition = {2 ed. rev. amp.}
}