Cita APA (7th ed.)
Bush, G. A. (1973). Foundations of mathematics. McGraw-Hill.
Cita Chicago (17th ed.)
Bush, Grace A. Foundations of Mathematics. Nueva York, EUA: McGraw-Hill, 1973.
Cita MLA (9th ed.)
Bush, Grace A. Foundations of Mathematics. McGraw-Hill, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.