Cita APA (7a ed.)

Harry, M. &. S. (2000). Six Sigma. Currency Book.

Cita Chicago Style (17a ed.)

Harry, Mikel & Schroe. Six Sigma. New York: Currency Book, 2000.

Cita MLA (9a ed.)

Harry, Mikel & Schroe. Six Sigma. Currency Book, 2000.