Cita APA (7a ed.)

Sandburg, C. (1971). His life, his poems, his land. United States Information Agency.

Cita Chicago Style (17a ed.)

Sandburg, Carl. His Life, His Poems, His Land. New York, Estados Unidos: United States Information Agency, 1971.

Cita MLA (9a ed.)

Sandburg, Carl. His Life, His Poems, His Land. United States Information Agency, 1971.