Dwivedi, O. P. (1986). Perspectives on technology and development. Gitanjali Pub. House.
Lua i Stíl Chicago (17ú heag.)Dwivedi, O. P. Perspectives on Technology and Development. New Delhi: Gitanjali Pub. House, 1986.
Lua MLA (8ú heag.)Dwivedi, O. P. Perspectives on Technology and Development. Gitanjali Pub. House, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.