Bureau of Mineral Resources, Geology and Geophysics, Department of National Development1966Geological map / compiled by Bureau of Mineral Resources, Geology and Geophysics, Department of National Development
Bureau of Mineral Resources, Geology and Geophysics, Department of National Development[1960?]Geological map / compiled by Bureau of Mineral Resources, Geology and Geophysics, Department of National Development
compiled by B.P. Walpole, E.J. Malone, M.A. Randal
Bureau of Mineral Resources, Geology and Geophysics, Department of National Development[1959?]Geological map / compiled by Bureau of Mineral Resources, Geology and Geophysics, Department of National Development