@book{28117,
	author = {Rivera de Otero, Consuelo.},
	title = {Mass communications services},
	publisher = {Editorial de la Universidad de Puerto Rico},
	year = {1976.},
	address = {Río Piedras P. R.},
	note = {Originally presented as the author's thesis, New York University, 1973, under title: An examination of selected Puerto Rican communications divisions with a view to the development of guidelines for the establishment of a communications media center.}
}