Professionals. (2019). Railway Protection Force Act 1957. Professional Book.
Chicago-referens (17:e uppl.)Professionals. Railway Protection Force Act 1957. Delhi: Professional Book, 2019.
MLA-referens (9:e uppl.)Professionals. Railway Protection Force Act 1957. Professional Book, 2019.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.