APA (7th ed.) Citation

Simschek, R., & Oppel, A. (2018). Six Sigma. UVK Verlagsgesellschaft mbH.

Chicago Style (17th ed.) Citation

Simschek, Roman, and Annalena Oppel. Six Sigma. Konstanz: UVK Verlagsgesellschaft mbH, 2018.

MLA (9th ed.) Citation

Simschek, Roman, and Annalena Oppel. Six Sigma. UVK Verlagsgesellschaft mbH, 2018.

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