Geomagnetic bulletin /
Natural Environment Research Council, Institute of Geological Sciences.

APA Citation

British Geological Survey., Institute of Geological Sciences (Great Britain). (1970). Geomagnetic bulletin. London: H.M.S.O..

MLA Citation

British Geological Survey, and Institute of Geological Sciences (Great Britain). Geomagnetic Bulletin. London: H.M.S.O., 1970.

Warning: These citations may not always be complete (especially for serials).