APA-Zitierstil (7. Ausg.)

Gupta, B. C., & Walker, H. F. (2005). Applied statistics for the Six sigma green belt. ASQ Quality Press.

Chicago-Zitierstil (17. Ausg.)

Gupta, Bhisham C., und H. Fred Walker. Applied Statistics for the Six Sigma Green Belt. Milwaukee, Wisconsin: ASQ Quality Press, 2005.

MLA-Zitierstil (9. Ausg.)

Gupta, Bhisham C., und H. Fred Walker. Applied Statistics for the Six Sigma Green Belt. ASQ Quality Press, 2005.