APA (7. basım) Alıntı

Singh,B. (2019). General Studies 2019 For UPSC,SSC etc. NE.

Chicago Style (17. basım) Atıf

Singh,B. General Studies 2019 For UPSC,SSC Etc. New Delhi: NE, 2019.

MLA (9th ed.) Atıf

Singh,B. General Studies 2019 For UPSC,SSC Etc. NE, 2019.