Annals of the International Geophysical Year v. XXXIII : results of ionospheric drift observations obtained during IGY and IGC 1959 edited by Rawer K. - Oxford Pergamon Press 1965 - 296p. - Annals of the International Geophysical Year . ISBN: 1110634043 Subjects--Topical Terms: International Geophysical Year Universal Decimal Class. No.: 550.38 / IGY