Gaya APA

Office, T, U, K, H. (1991). Admiralty Tidal Stream Atlas : Plymouth Harbour And Approaches NP 221 (2). Somerset: The United Kingdom Hydrographic Office.

Gaya MLA

Office, The, United, Kingdom, Hydrographic. "Admiralty Tidal Stream Atlas : Plymouth Harbour And Approaches NP 221". 2 Somerset: The United Kingdom Hydrographic Office, 1991. Text.