Cita APA (7a ed.)

Lites, E., & Lehman, J. (1990). Visions: A pre-intermediate grammar. Prentice Hall Regents.

Cita Chicago Style (17a ed.)

Lites, Emily, y Jean Lehman. Visions: A Pre-intermediate Grammar. Englewood Cliffs, N.J.: Prentice Hall Regents, 1990.

Cita MLA (9a ed.)

Lites, Emily, y Jean Lehman. Visions: A Pre-intermediate Grammar. Prentice Hall Regents, 1990.