Cita APA (7th ed.)

Brue, G., & Howes, R. (2006). The McGraw-Hill 36-hour course: Six Sigma (First edition.). McGraw-Hill Education.

Cita Chicago (17th ed.)

Brue, Greg, i R. Howes. The McGraw-Hill 36-hour Course: Six Sigma. First edition. New York: McGraw-Hill Education, 2006.

Cita MLA (9th ed.)

Brue, Greg, i R. Howes. The McGraw-Hill 36-hour Course: Six Sigma. First edition. McGraw-Hill Education, 2006.