Cita APA (7a ed.)
Schmude, R. W. (2008). Uranus, Neptune, and Pluto and how to observe them. Springer.
Cita Chicago Style (17a ed.)
Schmude, Richard W. Uranus, Neptune, and Pluto and How to Observe Them. New York ; London: Springer, 2008.
Cita MLA (9a ed.)
Schmude, Richard W. Uranus, Neptune, and Pluto and How to Observe Them. Springer, 2008.
Precaución: Estas citas no son 100% exactas.