APA (7th ed.) Citation

Whitman, W., & Miller, E. H. (1990). Selected letters of Walt Whitman. University of Iowa Press.

Chicago Style (17th ed.) Citation

Whitman, Walt, and Edwin Haviland Miller. Selected Letters of Walt Whitman. Iowa City, IA: University of Iowa Press, 1990.

MLA (9th ed.) Citation

Whitman, Walt, and Edwin Haviland Miller. Selected Letters of Walt Whitman. University of Iowa Press, 1990.