Keenan, J. J. (1994). Breaking Out of Beginner's Spanish. University of Texas Press.
Cita Chicago Style (17a ed.)Keenan, Joseph J. Breaking Out of Beginner's Spanish. Austin: University of Texas Press, 1994.
Cita MLA (8a ed.)Keenan, Joseph J. Breaking Out of Beginner's Spanish. University of Texas Press, 1994.
Precaución: Estas citas no son 100% exactas.