APA (7th ed.) Citation

British Geological Survey & Institute of Geological Sciences. Geomagnetic bulletin. HMSO.

Chicago Style (17th ed.) Citation

British Geological Survey and Institute of Geological Sciences. Geomagnetic Bulletin. London: HMSO.

MLA (9th ed.) Citation

British Geological Survey and Institute of Geological Sciences. Geomagnetic Bulletin. HMSO.

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