Gaya APA

Bentjerodt, J, R. (1985). Domestic Coal Pricing : Suggested Principles And Present Policies In Selected Countries . Bandung: Pusat Sumber Daya Geologi.

Gaya MLA

Bentjerodt, J., Roberto. "Domestic Coal Pricing : Suggested Principles And Present Policies In Selected Countries". Bandung: Pusat Sumber Daya Geologi, 1985. Batubara.