Malaysia. Jabatan Pengairan dan Saliran, Design Dimension Sdn. Bhd, & Ong, J. (1994). Mysterious caves of Langkawi, Malaysia. Dept. of Irrigation and Drainage, Ministry of Agriculture, Malaysia and Design Dimension Sdn. Bhd.
Cita Chicago (17th ed.)Malaysia. Jabatan Pengairan dan Saliran, Design Dimension Sdn. Bhd, i Johnny Ong. Mysterious Caves of Langkawi, Malaysia. Petaling Jaya: Dept. of Irrigation and Drainage, Ministry of Agriculture, Malaysia and Design Dimension Sdn. Bhd, 1994.
Cita MLA (8th ed.)Malaysia. Jabatan Pengairan dan Saliran, et al. Mysterious Caves of Langkawi, Malaysia. Dept. of Irrigation and Drainage, Ministry of Agriculture, Malaysia and Design Dimension Sdn. Bhd, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.