APA (7th ed.) Citation

Thurber, J., Thurber, H., & Weeks, E. (1981). Selected letters of James Thurber (1st trade ed.). Little, Brown.

Chicago Style (17th ed.) Citation

Thurber, James, Helen Thurber, and Edward Weeks. Selected Letters of James Thurber. 1st trade ed. Boston: Little, Brown, 1981.

MLA (9th ed.) Citation

Thurber, James, et al. Selected Letters of James Thurber. 1st trade ed. Little, Brown, 1981.