APA (7th ed.) Citation

Trimble, W. H. (1970). Walt Whitman and Leaves of grass: An introduction. Folcroft Press.

Chicago Style (17th ed.) Citation

Trimble, W. H. Walt Whitman and Leaves of Grass: An Introduction. [Folcroft, Pa.]: Folcroft Press, 1970.

MLA (9th ed.) Citation

Trimble, W. H. Walt Whitman and Leaves of Grass: An Introduction. Folcroft Press, 1970.