APA (7th ed.) Citation

Boylan, P., Rissel, D. A., Lett, J. A., Schaffer, M. E., Morris, M., & Portillo Zeleny, M. (1994). ¡En directo!: A beginning course (2st. ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Boylan, Patricia, Dorothy A. Rissel, John A. Lett, Martha E. Schaffer, Maria Morris, and Mayra Portillo Zeleny. ¡En Directo!: A Beginning Course. 2st. ed. New York etc.: McGraw-Hill, 1994.

MLA (9th ed.) Citation

Boylan, Patricia, et al. ¡En Directo!: A Beginning Course. 2st. ed. McGraw-Hill, 1994.