Williams, D. (2006). Admiralty list of radio signals volumen 6, part 5 NP 286 (5): Pilot services, vessel traffic services and port operations Americas and Antarctica (6th edición.). The United Kingdom Hydrographic office.
Chicago Style (17th ed.) CitationWilliams, D.W. Admiralty List of Radio Signals Volumen 6, Part 5 NP 286 (5): Pilot Services, Vessel Traffic Services and Port Operations Americas and Antarctica. 6th edición. Tounton, somerset: The United Kingdom Hydrographic office, 2006.
MLA (9th ed.) CitationWilliams, D.W. Admiralty List of Radio Signals Volumen 6, Part 5 NP 286 (5): Pilot Services, Vessel Traffic Services and Port Operations Americas and Antarctica. 6th edición. The United Kingdom Hydrographic office, 2006.
Warning: These citations may not always be 100% accurate.