Gaya APA

Office, T, U, K, H. (2011). Symbols And Abbreviations Used On Admiralty Charts NP 5011 (5). Somerset: The United Kingdom Hydrographic Office.

Gaya MLA

Office, The, United, Kingdom, Hydrographic. "Symbols And Abbreviations Used On Admiralty Charts NP 5011". 5 Somerset: The United Kingdom Hydrographic Office, 2011. Text.