@book{34271,
	author = {Parra Gutierrez, William Rene. and Parra Mejia, Ernesto.},
	title = {Derecho Administrativo Laboral},
	publisher = {Ediciones Nueva Juridica,},
	year = {2012.},
	address = {Bogotá :},
	edition = {4a. Ed.}
}