Stafford, Edward Paery. <br/><br/>
Sun earth and man :  the need to know the quest for knowledge of sun-earth relations / 
Edward Peary Stafford. 
 - Washington, D.C. :  National Aeronautics and Space Administration,   1982. 
 - 75p. :  ill. ;  28cm. 
 - NASA EP;  172. .
<br/><br/>Bibliography: p.74-75 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Outer space--Exploration.<br/>Sun--Observations.