Hargreaves, John Keith The upper atmosphere and solar-terrestrial relations an introduction to the aerospace environment John Keith Hargreaves - New York Van Nostrand 1979 - xv+298p. figs; index ISBN: 0-442-30216-9 Subjects--Topical Terms: Solar RadiationUpper Atmosphere Universal Decimal Class. No.: 551.510.53:523.9 / HAR