Gaya APA

Project, T, W, C, O, O, I, C, E. (1995). Interim Report on Ombilin III Coal The Detailed Exploration . Bandung: Pusat Sumber Daya Geologi.

Gaya MLA

Project, The, Working, Comittee, Of, Ombilin, III, CoAL, Exploration. "Interim Report on Ombilin III Coal The Detailed Exploration". Bandung: Pusat Sumber Daya Geologi, 1995. Batubara.