Verma, J. (1979). Managerial Economics. Lawrence Pub.
Lua i Stíl Chicago (17ú heag.)Verma, J. Managerial Economics. New Delhi: Lawrence Pub, 1979.
Lua MLA (9ú heag.)Verma, J. Managerial Economics. Lawrence Pub, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.