Geophysical measurements vol. 1, techniques, observational schedules and treatment of data edited by Minnis C. M. - Cambridge MIT Press 1968 - xviii, 398p. - Annals of the IQSY international years of the quiet sun . Subjects--Topical Terms: Astronomy and astrophysics thesaurusGeophysics Universal Decimal Class. No.: 550.3(047.1) / GEO