Παραπομπή APA

Chen, C., & Roth, H. (2005). The Big book of six sigma training games. Tata McGraw-Hill.

Παραπομπή Chicago Style

Chen, Chris, και Hadley Roth. The Big Book of Six Sigma Training Games. New Delhi: Tata McGraw-Hill, 2005.

Παραπομπή MLA

Chen, Chris, και Hadley Roth. The Big Book of Six Sigma Training Games. Tata McGraw-Hill, 2005.