APA (7th ed.) Citation

O'Neill, R., Anger, L. ., & Mugglestone, P. (1991). American dimensions: Intermediate : student's book. Longman.

Chicago Style (17th ed.) Citation

O'Neill, Robert, Larry Anger, and Pat Mugglestone. American Dimensions: Intermediate : Student's Book. Essex, England: Longman, 1991.

MLA (9th ed.) Citation

O'Neill, Robert, et al. American Dimensions: Intermediate : Student's Book. Longman, 1991.