Cita APA

Willoughby, S. S. (1967). Contemporary teaching of secondary school mathematics. New York: Wiley.

Chicago Style Citation

Willoughby, Stephen S. Contemporary Teaching of Secondary School Mathematics. New York: Wiley, 1967.

Cita MLA

Willoughby, Stephen S. Contemporary Teaching of Secondary School Mathematics. New York: Wiley, 1967.

Atenció: Aquestes cites poden no estar 100% correctes.