Cita APA (7th ed.)
Parker, F. D. (1966). The structure of number systems (1a. ed.). Pearson.
Cita Chicago (17th ed.)
Parker, Francis D. The Structure of Number Systems. 1a. ed. Pearson, 1966.
Cita MLA (9th ed.)
Parker, Francis D. The Structure of Number Systems. 1a. ed. Pearson, 1966.
Atenció: Aquestes cites poden no estar 100% correctes.