Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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