Cita APA

Azar, B. S. (2003). Answer key: Fundamentals of english grammar (3a ed.). New York: Longman.

Citación estilo Chicago

Azar, Betty Schrampfer. Answer Key: Fundamentals of English Grammar. 3a ed. New York: Longman, 2003.

Cita MLA

Azar, Betty Schrampfer. Answer Key: Fundamentals of English Grammar. 3a ed. New York: Longman, 2003.