Ngā kupu hautoa kōpae

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