Gaya APA

Marjono, . (1973). Geological Progress Report On The Central Part Of The Prangat Anticline-Prangat Quadrangle East Kalimantan . Bandung: Pusat Sumber Daya Geologi.

Gaya MLA

Marjono, . "Geological Progress Report On The Central Part Of The Prangat Anticline-Prangat Quadrangle East Kalimantan". Bandung: Pusat Sumber Daya Geologi, 1973. Batubara.