Style de citation APA (7e éd.)

Comstock, G. C. (1901). A text-book of astronomy. D. Appleton and company.

Style de citation Chicago (17e éd.)

Comstock, George C. A Text-book of Astronomy. New York: D. Appleton and company, 1901.

Style de citation MLA (8e éd.)

Comstock, George C. A Text-book of Astronomy. D. Appleton and company, 1901.