Sharma, A. (2017). General studies for civil services preliminary examination GS paper-II (UPSC). McGraw hill Education.
Citação do estilo Chicago (17ª ed.)Sharma, Arun. General Studies for Civil Services Preliminary Examination GS Paper-II (UPSC). Chennai: McGraw hill Education, 2017.
Citação MLA (9ª ed.)Sharma, Arun. General Studies for Civil Services Preliminary Examination GS Paper-II (UPSC). McGraw hill Education, 2017.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.