APA (7th ed.) Citation

Wright, A. L., & MacGillivray, J. H. (1956). Let's learn English (Complete ed.). American Book Co.

Chicago Style (17th ed.) Citation

Wright, Audrey L., and James H. MacGillivray. Let's Learn English. Complete ed. New York u.a: American Book Co, 1956.

MLA (9th ed.) Citation

Wright, Audrey L., and James H. MacGillivray. Let's Learn English. Complete ed. American Book Co, 1956.