@book{144398,
	author = {Pérez Sarrión, Guillermo.},
	title = {El Canal Imperial y la navegación hasta 1812},
	publisher = {Institución Fernando el Católico},
	year = {[1975?]},
	series = {Temas aragoneses},
	address = {Zaragoza},
	note = {Originally presented as the author's thesis (licenciatura en filosofía y letras), Zaragoza.}
}