APA-referens (7:e uppl.)

Khullar, D. (2018). Indian and world geography for civil services preliminary examination. CL Media.

Chicago-referens (17:e uppl.)

Khullar, D.R. Indian and World Geography for Civil Services Preliminary Examination. Roorkee: CL Media, 2018.

MLA-referens (9:e uppl.)

Khullar, D.R. Indian and World Geography for Civil Services Preliminary Examination. CL Media, 2018.

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