APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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