APA引文

Surender Singh. (2019). General Studies Paper I for Civil Services Preliminary Examination. McGraw Hill Education Pvt Ltd.

Chicago Edition Citation

Surender Singh. General Studies Paper I for Civil Services Preliminary Examination. Chennai: McGraw Hill Education Pvt Ltd, 2019.

MLA引文

Surender Singh. General Studies Paper I for Civil Services Preliminary Examination. McGraw Hill Education Pvt Ltd, 2019.

警告：這些引文格式不一定是100％准確.