Aono, Y. <br/><br/>
IGY data of ionospheric drifts at Yamagawa in Japan /    
Compiled by the editorial committee, Y. Aono, K. Tsukamoto, M. Ichinose. 
 - Ueno Park, Tokyo, Japan :   National Committee for the Internationa l Geophysical Coordination, Science Council of Japan,   19631. 
 - 24 p.  :    ill.  ;    30 cm.