Cita APA (7th ed.)

Posamentier, A. S., & Stepelman, J. (1986). Teaching secondary school mathematics: Techniques and enrichment units (2nd ed.). Merrill.

Cita Chicago (17th ed.)

Posamentier, Alfred S., i Jay Stepelman. Teaching Secondary School Mathematics: Techniques and Enrichment Units. 2nd ed. Columbus: Merrill, 1986.

Cita MLA (9th ed.)

Posamentier, Alfred S., i Jay Stepelman. Teaching Secondary School Mathematics: Techniques and Enrichment Units. 2nd ed. Merrill, 1986.