TY  - RPRT
TI  - Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska
AU  - John B. Townshend
AU  - R. V. O’Connell
AU  - Carol Ann Varner
PY  - 1989
DO  - 10.3133/ofr89300e
UR  - https://pubs.usgs.gov/publication/ofr89300E
ID  - ofr89300E
ER  -