Sarkar, P. N. (1931). A textbook of civics. Book Co..
Lua i Stíl Chicago (17ú heag.)Sarkar, P. N. A Textbook of Civics. Calcutta: Book Co., 1931.
Lua MLA (8ú heag.)Sarkar, P. N. A Textbook of Civics. Book Co., 1931.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.