Cita APA (7a ed.)

Sandburg, C. Prayers of Steel: Carl Sandburg. The Midwest.(1979).

Cita Chicago Style (17a ed.)

Sandburg, Carl. "Prayers of Steel: Carl Sandburg." The Midwest.(1979) .

Cita MLA (8a ed.)

Sandburg, Carl. "Prayers of Steel: Carl Sandburg." The Midwest.(1979), .