@book{110302,
	author = {Perez Sala, Paulino.},
	title = {Interferencia lingüística del inglés en el español hablado en Puerto Rico /},
	publisher = {Inter American University Press,},
	year = {1973 [c1972]},
	address = {Hato Rey, P.R. :},
	note = {Originally presented as the author's thesis, University of Puerto Rico.}
}