Oakland, J. S. (1999). Statistical process control (4th ed.). Butterworth-Heinemann.
Lua i Stíl Chicago (17ú heag.)Oakland, John S. Statistical Process Control. 4th ed. Oxford,England: Butterworth-Heinemann, 1999.
Lua MLA (8ú heag.)Oakland, John S. Statistical Process Control. 4th ed. Butterworth-Heinemann, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.