Franklin

MLA

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

APA

Sandburg, H. (1958). The wheel of earth. [New York]: McDowell, Obolensky.

Chicago

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