Cita APA (7th ed.)

ebrary, Inc, Allen, G. W., & Folsom, E. (1995). Walt Whitman & the world. University of Iowa Press.

Cita Chicago (17th ed.)

ebrary, Inc, Gay Wilson Allen, i Ed Folsom. Walt Whitman & the World. Iowa City: University of Iowa Press, 1995.

Cita MLA (9th ed.)

ebrary, Inc, et al. Walt Whitman & the World. University of Iowa Press, 1995.