APA (7th ed.) Citation

Mammana, C., & Villani, V. (1998). Perspectives on the teaching of geometry for the 21st century: An ICMI study. Kluwer Academic Publishers.

Chicago Style (17th ed.) Citation

Mammana, Carmelo, and Vinicio Villani. Perspectives on the Teaching of Geometry for the 21st Century: An ICMI Study. Dordrecht Boston: Kluwer Academic Publishers, 1998.

MLA (8th ed.) Citation

Mammana, Carmelo, and Vinicio Villani. Perspectives on the Teaching of Geometry for the 21st Century: An ICMI Study. Kluwer Academic Publishers, 1998.