APA (7th ed.) Citation

Great Britain. Patent Office & Bill Douglas Centre. The trade marks journal advertisements. Patent Office.

Chicago Style (17th ed.) Citation

Great Britain. Patent Office and Bill Douglas Centre. The Trade Marks Journal Advertisements. London: Patent Office.

MLA (9th ed.) Citation

Great Britain. Patent Office and Bill Douglas Centre. The Trade Marks Journal Advertisements. Patent Office.

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