Cita APA (7a ed.)

Byrne, D., & Cornelius, E. T. J. (1978). 30 passages: Comprehension practice for high intermediate and advanced student (1st edition.). Longman.

Cita Chicago Style (17a ed.)

Byrne, Donn, y Edwin T. Jr Cornelius. 30 Passages: Comprehension Practice for High Intermediate and Advanced Student. 1st edition. New York: Longman, 1978.

Cita MLA (8a ed.)

Byrne, Donn, y Edwin T. Jr Cornelius. 30 Passages: Comprehension Practice for High Intermediate and Advanced Student. 1st edition. Longman, 1978.