374467 Ong, W. S. (1993). The geology and engineering geology of Pulau Pinang. Kuala Lumpur : Jabatan Penyiasatan Kajibumi.
Chicago Style (17th ed.) Citation374467 Ong, Wee Seck. The Geology and Engineering Geology of Pulau Pinang. Kuala Lumpur : Jabatan Penyiasatan Kajibumi, 1993.
MLA (9th ed.) Citation374467 Ong, Wee Seck. The Geology and Engineering Geology of Pulau Pinang. Kuala Lumpur : Jabatan Penyiasatan Kajibumi, 1993.
Warning: These citations may not always be 100% accurate.