Gaya APA

Geologi, P, S, D. (1985). Report On The Coal Reconnaissance Permit Over West Aceh, Sumatra, Indonesia . Bandung: Pusat Sumber Daya Geologi.

Gaya MLA

Geologi, Pusat, Sumber, Daya. "Report On The Coal Reconnaissance Permit Over West Aceh, Sumatra, Indonesia". Bandung: Pusat Sumber Daya Geologi, 1985. Batubara.