Kirk, H. J. C. (1962). The Geology and mineral resources of the Semporna Peninsula, North Borneo. Govt. Printer.
Chicago-viite (17. p.)Kirk, H. J. C. The Geology and Mineral Resources of the Semporna Peninsula, North Borneo. Kutching, Sarawak: Govt. Printer, 1962.
MLA-viite (9. p.)Kirk, H. J. C. The Geology and Mineral Resources of the Semporna Peninsula, North Borneo. Govt. Printer, 1962.
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