International geophysical year, world data center  A solar activity high altitude observatory:    intermediate reports of surges and active prominence regions April - June 1958 

 - Washington :    National Academy of Science ,    1959 
 - [n.p.] :    28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Solar activity<br/> Solar rediation<br/> Statistical services
<br/><br/><label>Dewey Class. No.: </label>IGY (08) 10/5