Gaya APA

Williams, D, D, W. (2003). Admiralty Sailing Directions : Malacca Strait and West Coast of Sumatera Pilot (Seventh Edition 2003). England: United Kingdom Hydrographic Office.

Gaya MLA

Williams, Dr, D, W. "Admiralty Sailing Directions : Malacca Strait and West Coast of Sumatera Pilot". Seventh Edition 2003 England: United Kingdom Hydrographic Office, 2003. Text.