New Vishal Publication. (2019). IAS Preliminary Civil Services (Pre.)Exam General Studies Paper-2. New Vishal Publication.
Chicago-referens (17:e uppl.)New Vishal Publication. IAS Preliminary Civil Services (Pre.)Exam General Studies Paper-2. New Delhi: New Vishal Publication, 2019.
MLA-referens (9:e uppl.)New Vishal Publication. IAS Preliminary Civil Services (Pre.)Exam General Studies Paper-2. New Vishal Publication, 2019.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.