Gaya APA

M.E., F, G, M. (1918). Report on the results of the Geological and Mining survey of the Tanjung Coalfields. . Bandung: Direktorat Batubara.

Gaya MLA

M.E., F., G, MANNHARDTH,. "Report on the results of the Geological and Mining survey of the Tanjung Coalfields.". Bandung: Direktorat Batubara, 1918. Batubara.