http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Daily magnetograms for 1979 from the AFGL network
v, 411 pages : chiefly charts, 1 map ; 28 cm.
Distributed to depository libraries in microfiche.
Special reports (U.S. Air Force Geophysics Laboratory) ; no. 244