APA (7th ed.) Citation

Great Britain. Directorate of Overseas Surveys. (1969). Bermuda (Ed. 3.). Directorate of Overseas Surveys.

Chicago Style (17th ed.) Citation

Great Britain. Directorate of Overseas Surveys. Bermuda. Ed. 3. [London?]: Directorate of Overseas Surveys, 1969.

MLA (9th ed.) Citation

Great Britain. Directorate of Overseas Surveys. Bermuda. Ed. 3. Directorate of Overseas Surveys, 1969.

Warning: These citations may not always be 100% accurate.