APA-referens (7:e uppl.)

Bray, W. L. (1912). The development of the vegetation of New York state (2nd ed.). Spracuse University.

Chicago-referens (17:e uppl.)

Bray, William L. The Development of the Vegetation of New York State. 2nd ed. New York: Spracuse University, 1912.

MLA-referens (9:e uppl.)

Bray, William L. The Development of the Vegetation of New York State. 2nd ed. Spracuse University, 1912.