Cita APA (7a ed.)

Brussee, W. (2005). All About six sigma. [TMH.

Cita Chicago Style (17a ed.)

Brussee, Warren. All About Six Sigma. [s.l]: [TMH, 2005.

Cita MLA (9a ed.)

Brussee, Warren. All About Six Sigma. [TMH, 2005.