Lua APA (7ú heag.)

Duckworth, H. A. &. H. (2016). A Six sigma approach to sustainability. CRC Press.

Lua i Stíl Chicago (17ú heag.)

Duckworth, Holly A. & Hoffmeier. A Six Sigma Approach to Sustainability. Boca Ratan: CRC Press, 2016.

Lua MLA (9ú heag.)

Duckworth, Holly A. & Hoffmeier. A Six Sigma Approach to Sustainability. CRC Press, 2016.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.