TY - BOOK AU - Beynon, W. J. G., ed. Brown, G. M., ed. TI - Annals of the international geophysical year: v. 3 : the ionosphere; part 2 : the measurement of ionospheric absorption; part 3 : the measurement of ionospheric drifts; part 4 : miscellaneous radio measurements T2 - Annals of the International Geophysical Year SN - 978-1483213125 PY - 1957/// CY - London PB - Pergamon Press KW - International Geophysical Year ER -