Fredrick, Laurence W <br/><br/>
An introduction to astronomy 
by Laurence W. Fredrick and Robert H. Baker 
 - 8th ed. 
 - New York :  D. Van Nostrand Company,  1974 
 - xii, 453 p. :  ill. ;  24 cm. 
<br/><br/> First-7th ed., by R. H. Baker (7th ed., with L. W. Fredrick). 
<br/><br/>p. 429-430. 
<br/><br/><label>ISBN: </label>0442224362 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy