Cita APA

Sandburg, H. (1958). The wheel of earth. McDowell, Obolensky.

Citación estilo Chicago

Sandburg, Helga. The Wheel of Earth. [New York]: McDowell, Obolensky, 1958.

Cita MLA

Sandburg, Helga. The Wheel of Earth. McDowell, Obolensky, 1958.

Warning: These citations may not always be 100% accurate.