Gordon & Williams. (2008). Tunnels=Terowong (Edisi bahasa Malaysia.). PTS Litera.
Chicago Style (17th ed.) CitationGordon and Williams. Tunnels=Terowong. Edisi bahasa Malaysia. Kuala Lumpur: PTS Litera, 2008.
MLA (8th ed.) CitationGordon and Williams. Tunnels=Terowong. Edisi bahasa Malaysia. PTS Litera, 2008.
Warning: These citations may not always be 100% accurate.