Chopra, S. (2007). Supply chain management (3.).
Lua i Stíl Chicago (17ú heag.)Chopra, Sunil. Supply Chain Management. 3. New Delhi, 2007.
Lua MLA (9ú heag.)Chopra, Sunil. Supply Chain Management. 3. 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.