Kirk, H. J. C. (1962). The Geology and mineral resources of the Semporna Peninsula, North Borneo. Govt. Printer.
Dyfyniad Arddull ChicagoKirk, H. J. C. The Geology and Mineral Resources of the Semporna Peninsula, North Borneo. Kutching, Sarawak: Govt. Printer, 1962.
Dyfyniad MLAKirk, H. J. C. The Geology and Mineral Resources of the Semporna Peninsula, North Borneo. Govt. Printer, 1962.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.