Cita APA (7a ed.)

O'Neill, R., Cornelius, E. T. J., Kingsbury, R., & Yeadon, T. (1978). Américan Kernel lessons: Intermediate. Teacher's manual (1st edition.). Longman.

Cita Chicago Style (17a ed.)

O'Neill, Robert, Edwin T. Jr Cornelius, R.H Kingsbury, y Tony Yeadon. Américan Kernel Lessons: Intermediate. Teacher's Manual. 1st edition. New York: Longman, 1978.

Cita MLA (8a ed.)

O'Neill, Robert, et al. Américan Kernel Lessons: Intermediate. Teacher's Manual. 1st edition. Longman, 1978.