Style de citation APA (7e éd.)

Hudson, W. H. (1894). An introduction to the philosophy of Herbert Spencer: With a biographical sketch. D. Appleton and co..

Style de citation Chicago (17e éd.)

Hudson, William Henry. An Introduction to the Philosophy of Herbert Spencer: With a Biographical Sketch. New York: D. Appleton and co., 1894.

Style de citation MLA (8e éd.)

Hudson, William Henry. An Introduction to the Philosophy of Herbert Spencer: With a Biographical Sketch. D. Appleton and co., 1894.