APA (7th ed.) Citation

Whitman, W., & Loving, J. (1990). Leaves of grass. Oxford University press.

Chicago Style (17th ed.) Citation

Whitman, Watt, and Jerome Loving. Leaves of Grass. Oxford ; New York: Oxford University press, 1990.

MLA (9th ed.) Citation

Whitman, Watt, and Jerome Loving. Leaves of Grass. Oxford University press, 1990.