APA (7th ed.) Citation

Serra, M. (1997). Discovering geometry (2nd ed.). Key Curriculum Press.

Chicago Style (17th ed.) Citation

Serra, Michael. Discovering Geometry. 2nd ed. Berkeley,CA: Key Curriculum Press, 1997.

MLA (9th ed.) Citation

Serra, Michael. Discovering Geometry. 2nd ed. Key Curriculum Press, 1997.