Gaya APA

How, G, T. (1961). Short Report On The Progress Of The Geological Investigation Ferformed For The Soda Ash Project In Indonesia . Bandung: Direktorat Sumber Daya Mineral.

Gaya MLA

How, Goei, Tjo. "Short Report On The Progress Of The Geological Investigation Ferformed For The Soda Ash Project In Indonesia". Bandung: Direktorat Sumber Daya Mineral, 1961. Bukan Logam.