Posamentier, A. S., & Stepelman, J. (1986). Teaching secondary school mathematics: Techniques and enrichment units (2nd ed.). Merrill.
Chicago Style (17. basım) AtıfPosamentier, Alfred S., ve Jay Stepelman. Teaching Secondary School Mathematics: Techniques and Enrichment Units. 2nd ed. Columbus: Merrill, 1986.
MLA (9th ed.) AtıfPosamentier, Alfred S., ve Jay Stepelman. Teaching Secondary School Mathematics: Techniques and Enrichment Units. 2nd ed. Merrill, 1986.
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