Cita APA (7a ed.)

Schiffrin, R. d., Uteda, B., & Golstein, E. (1970). English second language: Teacher's book 1. Longman.

Cita Chicago Style (17a ed.)

Schiffrin, R.S. de, B.A Uteda, y E.J Golstein. English Second Language: Teacher's Book 1. London: Longman, 1970.

Cita MLA (8a ed.)

Schiffrin, R.S. de, et al. English Second Language: Teacher's Book 1. Longman, 1970.