Cita APA (7a ed.)
Sayward, C. (2009). Dialogues concerning natural numbers. Peter Lang.
Cita Chicago Style (17a ed.)
Sayward, Charles. Dialogues Concerning Natural Numbers. New York: Peter Lang, 2009.
Cita MLA (9a ed.)
Sayward, Charles. Dialogues Concerning Natural Numbers. Peter Lang, 2009.
Precaución: Estas citas no son 100% exactas.