Jones, C. R. (1978). The geology and mineral resources of Perlis, North Kedah, and the Langkawi Islands. Geological Survey Headquarters.
Chicago Style (17th ed.) CitationJones, Clive R. The Geology and Mineral Resources of Perlis, North Kedah, and the Langkawi Islands. Kuala Lumpur, Malaysia: Geological Survey Headquarters, 1978.
MLA (9th ed.) CitationJones, Clive R. The Geology and Mineral Resources of Perlis, North Kedah, and the Langkawi Islands. Geological Survey Headquarters, 1978.
Warning: These citations may not always be 100% accurate.