Παραπομπή σε μορφή APA (7η εκδ.)

Omar, K. (1980). Hajj & umra: As ordained by the Holy Quran and established by the last prophet (2nd enl. ed.). K. Omar.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Omar, Kamal. Hajj & Umra: As Ordained by the Holy Quran and Established by the Last Prophet. 2nd enl. ed. Karachi: K. Omar, 1980.

Παραπομπή σε μορφή MLA (8th εκδ.)

Omar, Kamal. Hajj & Umra: As Ordained by the Holy Quran and Established by the Last Prophet. 2nd enl. ed. K. Omar, 1980.