TY  - RPRT
TI  - Preliminary geomagnetic data, College Observatory, Fairbanks, August 1989
AU  - J.B. Townshend
AU  - R. V. O’Connell
AU  - C.A. Varner
PY  - 1989
DO  - 10.3133/ofr89300g
UR  - https://pubs.usgs.gov/publication/ofr89300G
ID  - ofr89300G
ER  -