APA

Humphrey J., . (2018). Admiralty List of Lights and fog Signals: North-East Indian Ocean, Central Part of South China and Eastern Archipelagic Seas (North of the Equator), Excluding China, and South-West Part of Philippine Sea, NP79 Vol.F (2018/19). UK: United Kingdom Hydrographic Office.

Chicago

Humphrey John, . 2018. Admiralty List of Lights and fog Signals: North-East Indian Ocean, Central Part of South China and Eastern Archipelagic Seas (North of the Equator), Excluding China, and South-West Part of Philippine Sea, NP79 Vol.F (2018/19). UK: United Kingdom Hydrographic Office.

Harvard

Humphrey J., . (2018). Admiralty List of Lights and fog Signals: North-East Indian Ocean, Central Part of South China and Eastern Archipelagic Seas (North of the Equator), Excluding China, and South-West Part of Philippine Sea, NP79 Vol.F (2018/19). UK: United Kingdom Hydrographic Office.

MLA

Humphrey John, . Admiralty List of Lights and fog Signals: North-East Indian Ocean, Central Part of South China and Eastern Archipelagic Seas (North of the Equator), Excluding China, and South-West Part of Philippine Sea, NP79 Vol.F (2018/19). UK: United Kingdom Hydrographic Office. 2018.