APA (7th ed.) Citation

Auden, W. H., & Isherwood, C. (1938). On the frontier, a melodrama in three acts. Random House.

Chicago Style (17th ed.) Citation

Auden, W. H., and Christopher Isherwood. On the Frontier, a Melodrama in Three Acts. New York: Random House, 1938.

MLA (8th ed.) Citation

Auden, W. H., and Christopher Isherwood. On the Frontier, a Melodrama in Three Acts. Random House, 1938.

Warning: These citations may not always be 100% accurate.