APA (7th ed.) Citation

Wright, A. L., Barrett, R. P., & Katranides, A. (1973). Let's learn English: Intermediate course, book 3 (2nd ed.). American Book Company.

Chicago Style (17th ed.) Citation

Wright, Audrey L., Ralph P. Barrett, and Aristotle Katranides. Let's Learn English: Intermediate Course, Book 3. 2nd ed. New York: American Book Company, 1973.

MLA (9th ed.) Citation

Wright, Audrey L., et al. Let's Learn English: Intermediate Course, Book 3. 2nd ed. American Book Company, 1973.