Introduction to space science. 

 - 2d ed., rev. and enl. Edited by Wilmot N. Hess and Gilbert D. Mead.  2d ed., rev. and enl. Edited by Wilmot N. Hess and Gilbert D. Mead. 
 - New York,  Gordon and Breach  [1968] 
<br/><br/>Includes bibliographies. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Space sciences.
<br/><br/><label>LC Class. No.: </label>QB 500.U47 GOD 1968