Cita APA (7th ed.)

Sandburg, C. (1992). Selected poems. Gramercy Books.

Cita Chicago (17th ed.)

Sandburg, Carl. Selected Poems. New York, Estados Unidos: Gramercy Books, 1992.

Cita MLA (9th ed.)

Sandburg, Carl. Selected Poems. Gramercy Books, 1992.