Malacca Strait and west coast of Sumatera pilot :
Malacca Strait and its northern approaches, Singapore Strait, the west coast of Sumatera, and including Cocos Islands

APA Citation

Great Britain. Hydrographic Dept. (1987). Malacca Strait and west coast of Sumatera pilot: Malacca Strait and its northern approaches, Singapore Strait, the west coast of Sumatera, and including Cocos Islands. 6th ed Taunton, Somerset, England: Hydrographer of the Navy.

MLA Citation

Great Britain. Hydrographic Dept. Malacca Strait And West Coast of Sumatera Pilot: Malacca Strait And Its Northern Approaches, Singapore Strait, the West Coast of Sumatera, And Including Cocos Islands. 6th ed Taunton, Somerset, England: Hydrographer of the Navy, 1987.