Wilder, R. L. (1965). Introduction to the foundations of: Mathematics (2nd ed.). Toppan; New York: Wiley.
Cita Chicago (17th ed.)Wilder, Raymond L. Introduction to the Foundations of: Mathematics. 2nd ed. Tokyo: Toppan; New York: Wiley, 1965.
Cita MLA (9th ed.)Wilder, Raymond L. Introduction to the Foundations of: Mathematics. 2nd ed. Toppan; New York: Wiley, 1965.
Atenció: Aquestes cites poden no estar 100% correctes.