Hosmer George L <br/><br/>
Practiacl astronomy 

 - 4 
 -  1958 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>24962 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B90D, J8