Robbins, Ralph Robert, 1938- <br/><br/>
Discovering astronomy / 
R. Robert Robbins / William H. Jeffreys. 
 - 2nd ed. 
 - New York :  Wiley,  c1988. 
 - xv, 480 p. : ill. 
<br/><br/> Includes appendix, bibliographies, and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy