Cita APA (7a ed.)

Kirn, E. J. (2002). Interactions 1: Grammar. Mc Graw-Hill.

Cita Chicago Style (17a ed.)

Kirn, Elaine; Jack. Interactions 1: Grammar. New York, Estados Unidos: Mc Graw-Hill, 2002.

Cita MLA (9a ed.)

Kirn, Elaine; Jack. Interactions 1: Grammar. Mc Graw-Hill, 2002.