Gaya APA

Rohland, D, W. (1959). Preliminary Report Of The 1958/59 Investigations On The Ore And Coal Deposits In Kalimantan . Bandung: Pusat Sumber Daya Geologi.

Gaya MLA

Rohland, Dr.-Ing., W.. "Preliminary Report Of The 1958/59 Investigations On The Ore And Coal Deposits In Kalimantan". Bandung: Pusat Sumber Daya Geologi, 1959. Batubara.