APA (7th ed.) Citation
Willoughby, S. S. (1967). Contemporary teaching of secondary school mathematics. Wiley.
Chicago Style (17th ed.) Citation
Willoughby, Stephen S. Contemporary Teaching of Secondary School Mathematics. New York: Wiley, 1967.
MLA (9th ed.) Citation
Willoughby, Stephen S. Contemporary Teaching of Secondary School Mathematics. Wiley, 1967.
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