Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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