APA (7th ed.) Citation

Berman, S., Plummer, G. A., & Scheuer, D. (1998). Investigating Mathematics with PentaBlocks.

Chicago Style (17th ed.) Citation

Berman, Sheldon, Gary A. Plummer, and Don Scheuer. Investigating Mathematics with PentaBlocks. 1998.

MLA (9th ed.) Citation

Berman, Sheldon, et al. Investigating Mathematics with PentaBlocks. 1998.

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