Professional Book Publishers. (2019). The Official Languages Act, 1963 (19 of 1963). Professional Book Publishers.
Chicago-referens (17:e uppl.)Professional Book Publishers. The Official Languages Act, 1963 (19 of 1963). New Delhi: Professional Book Publishers, 2019.
MLA-referens (9:e uppl.)Professional Book Publishers. The Official Languages Act, 1963 (19 of 1963). Professional Book Publishers, 2019.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.