Wadhwa, R. (1998). Production management and inventory control M- Basic series. Kanishka.
Lua i Stíl Chicago (17ú heag.)Wadhwa, Raj. Production Management and Inventory Control M- Basic Series. New Delhi: Kanishka, 1998.
Lua MLA (9ú heag.)Wadhwa, Raj. Production Management and Inventory Control M- Basic Series. Kanishka, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.