Gaya APA

Ubaghs, I, J. (1940). Report On The Excursion To The Iron Ore Fields In S.E.KALIMANTAN FROM SEPTEMBER-30 TO OCTOBER 13, 1940 . Bandung: Pusat Sumber Daya Geologi.

Gaya MLA

Ubaghs, Ir., J.G.H.. "Report On The Excursion To The Iron Ore Fields In S.E.KALIMANTAN FROM SEPTEMBER-30 TO OCTOBER 13, 1940". Bandung: Pusat Sumber Daya Geologi, 1940. Logam.