APA引用形式

Surender Singh and Virinder Parmar. (2020). General Studies: For Civil services preliminary examination ,GS Paper .1. McGraw Hill.

シカゴスタイル引用形

Surender Singh and Virinder Parmar. General Studies: For Civil Services Preliminary Examination ,GS Paper .1. Chennai: McGraw Hill, 2020.

MLA引用形式

Surender Singh and Virinder Parmar. General Studies: For Civil Services Preliminary Examination ,GS Paper .1. McGraw Hill, 2020.

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