Cita APA

Richards, I. A., & Gibson, C. (1945). Learning basic english: A practical handbook for english speaking people. New York: Norton W.W. & Company.

Citación estilo Chicago

Richards, I. A., y Christine Gibson. Learning Basic English: A Practical Handbook for English Speaking People. New York: Norton W.W. & Company, 1945.

Cita MLA

Richards, I. A., y Christine Gibson. Learning Basic English: A Practical Handbook for English Speaking People. New York: Norton W.W. & Company, 1945.