Trackers of the skies 
edited by Hayes E. Nelson 
 - Cambridge  Howard A Doyle Publishing  1968 
 - xiii, 169p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomical techniques<br/>Astronomy and astrophysics thesaurus<br/>Observing techniques<br/>Satellite borne instruments<br/>Sky surveys
<br/><br/><label>Universal Decimal Class. No.: </label>520.8  / TRA