@book{176257,
	author = {Buitrago Ortiz, Carlos and Buitrago Ortiz, Carlos},
	title = {Los orígenes históricos de la sociedad precapitalista en Puerto Rico :},
	publisher = {Ediciones Huracán ,},
	year = {1976.},
	series = {Colección Semilla},
	address = {Santa Rita, Río Piedras, P.R. :},
	note = {The 1st essay is a translation of The development of agrarian and commercial capitalism in Puerto Rico.}
}