APA Citation

Posamentier, A. S., & Salkind, C. T. n. 1. (1988). Challenging problems in geometry. New York: Dover.

Chicago Style Citation

Posamentier, Alfred S., and Charles T. n. 1898 Salkind. Challenging Problems in Geometry. New York: Dover, 1988.

MLA Citation

Posamentier, Alfred S., and Charles T. n. 1898 Salkind. Challenging Problems in Geometry. New York: Dover, 1988.

Warning: These citations may not always be 100% accurate.