Cita APA (7a ed.)

Moulton, F. R. (1923). An introduction to celestial mechanics. The Macmillan Company.

Cita Chicago Style (17a ed.)

Moulton, Forest Ray. An Introduction to Celestial Mechanics. London: The Macmillan Company, 1923.

Cita MLA (9a ed.)

Moulton, Forest Ray. An Introduction to Celestial Mechanics. The Macmillan Company, 1923.