APA引文

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

Chicago Style (17th ed.) Citation

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

MLA引文

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