Cita APA (7a ed.)
Thurston, H. (1956). The number system (1a.ed.). Dover publications.
Cita Chicago Style (17a ed.)
Thurston, H.A. The Number System. 1a.ed. Dover publications, 1956.
Cita MLA (9a ed.)
Thurston, H.A. The Number System. 1a.ed. Dover publications, 1956.
Precaución: Estas citas no son 100% exactas.