Gaya APA

Publications, A, C, A. (1991). Symbols and Abbreviations Used on Admiralty Charts : Chart 5011 (INT I) (Edition 1). West Germany: The United Kingdom Hydrographic Office.

Gaya MLA

Publications, Admiralty, Charts, And. "Symbols and Abbreviations Used on Admiralty Charts : Chart 5011 (INT I)". Edition 1 West Germany: The United Kingdom Hydrographic Office, 1991. Text.