Penrissen area, West Sarawak, Malaysia : explanation of sheets 1-110-2, 1-110-13, and 1-110-14 - Wilford, G. E.; Khoo, C. H.; Malaysia. Jabatan Penyiasatan Kajibumi (Kuching : Government Printing Office, 1965)
A coloured geological map is in the pocket inside the back cover
Keywords: Sarawak