International geomagnetic reference field 1980 charts and grid values
Eugene B. Fabiano, N. W. Peddie, D.R. Barraclough and A. K. Zunde
- USA United States Department of the Interio 1983
- 142p. appendix
- International Association of Geomagnetism and Aeronomy Bulletin No. 47 .
This book was recovered after being affected in the floods of 26th-27th July 2005.