Style de citation APA (7e éd.)

Kingsley, D. P. (1903). The first business of the world and other addresses and papers. s.n.

Style de citation Chicago (17e éd.)

Kingsley, Darwin Pearl. The First Business of the World and Other Addresses and Papers. New York: s.n, 1903.

Style de citation MLA (9e éd.)

Kingsley, Darwin Pearl. The First Business of the World and Other Addresses and Papers. s.n, 1903.