APA (7th ed.) Citation

Geddes, D., Bove, J., & Curcio, F. R. (1992). Geometry in the middle grades. National Council of Teachers of Mathematics.

Chicago Style (17th ed.) Citation

Geddes, Dorothy, Juliana Bove, and Frances R. Curcio. Geometry in the Middle Grades. Reston, VA: National Council of Teachers of Mathematics, 1992.

MLA (9th ed.) Citation

Geddes, Dorothy, et al. Geometry in the Middle Grades. National Council of Teachers of Mathematics, 1992.