Gaya APA

G., D, R, K. (1957). Investigation Into The Geological And Mining Aspects Of The Iron-ore And Coal Deposits In Indoneia Volume 3 Result Of The Investigation Of The Coal Deposits . Bandung: Pusat Sumber Daya Geologi.

Gaya MLA

G., Dr., Rohland, K.. "Investigation Into The Geological And Mining Aspects Of The Iron-ore And Coal Deposits In Indoneia Volume 3 Result Of The Investigation Of The Coal Deposits". Bandung: Pusat Sumber Daya Geologi, 1957. Encyclopaedia.