Bhattasali, B. N., & Bhattasali, G. (1972). Productivity and economic development. Asian Productivity Organization.
Lua i Stíl Chicago (17ú heag.)Bhattasali, B. N., agus G. Bhattasali. Productivity and Economic Development. Tokyo: Asian Productivity Organization, 1972.
Lua MLA (9ú heag.)Bhattasali, B. N., agus G. Bhattasali. Productivity and Economic Development. Asian Productivity Organization, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.