Gaya APA

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

Gaya MLA

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