APA (7. basım) Alıntı

Singh, S. &. P. (2019). General studies for civil services preliminary examination 2019. McGraw Hill.

Chicago Style (17. basım) Atıf

Singh, Surendra & Parmar. General Studies for Civil Services Preliminary Examination 2019. Chennai: McGraw Hill, 2019.

MLA (9th ed.) Atıf

Singh, Surendra & Parmar. General Studies for Civil Services Preliminary Examination 2019. McGraw Hill, 2019.