Gaya APA

DRS.HARDJONO, . (1964). REPORT ON THE GEOLOGY OF THE COAL DEPOSITS OF THE TANAH HITAM-, SUNGAI DURIAN-, AND TAJEH FIELDS IN THE OMBILIN CONCESSION AREA , SAWAHLUNTO - WEST SUMATRA . Bandung: Pusat Sumber Daya Geologi.

Gaya MLA

DRS.HARDJONO, . "REPORT ON THE GEOLOGY OF THE COAL DEPOSITS OF THE TANAH HITAM-, SUNGAI DURIAN-, AND TAJEH FIELDS IN THE OMBILIN CONCESSION AREA , SAWAHLUNTO - WEST SUMATRA". Bandung: Pusat Sumber Daya Geologi, 1964. Batubara.