Sandburg, H. (1958). The wheel of earth. McDowell, Obolensky.
Chicago Style (17th ed.) CitationSandburg, Helga. The Wheel of Earth. [New York]: McDowell, Obolensky, 1958.
Cita MLASandburg, Helga. The Wheel of Earth. McDowell, Obolensky, 1958.
Atenció: Aquestes cites poden no estar 100% correctes.