APA (7th ed.) Citation

Great Britain. Directorate of Overseas Surveys. (1965). 1: 50 000 British Solomon Islands Protectorate (1st. ed.). The Directorate.

Chicago Style (17th ed.) Citation

Great Britain. Directorate of Overseas Surveys. 1: 50 000 British Solomon Islands Protectorate. 1st. ed. Tolworth, Surrey, England: The Directorate, 1965.

MLA (9th ed.) Citation

Great Britain. Directorate of Overseas Surveys. 1: 50 000 British Solomon Islands Protectorate. 1st. ed. The Directorate, 1965.