Sinha, B. K. (1972). Co-operation in changing society. Deluxe Printery.
Lua i Stíl Chicago (17ú heag.)Sinha, B. K. Co-operation in Changing Society. New Delhi: Deluxe Printery, 1972.
Lua MLA (8ú heag.)Sinha, B. K. Co-operation in Changing Society. Deluxe Printery, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.