Gaya APA

Swanson, C, P., Collis, J, S. (1954). **The triumph of the tree . New York: New York: The Viking Press; 1954.

Gaya MLA

Swanson, Carl, P.., Collis, John, Stewart. "**The triumph of the tree". New York: New York: The Viking Press; 1954, 1954. Text.