Cita APA (7th ed.)

FREUND, J. E. (1964). Modern introduction to mathematics. Prentice-Hall.

Cita Chicago (17th ed.)

FREUND, John E. Modern Introduction to Mathematics. Englewood Cliffs: Prentice-Hall, 1964.

Cita MLA (9th ed.)

FREUND, John E. Modern Introduction to Mathematics. Prentice-Hall, 1964.

Atenció: Aquestes cites poden no estar 100% correctes.