Hosmer, George L. . <br/><br/>
Text Book on Practical Astronomy /  Textual Documents 
George L.Hosmer. 
 - 2nd ed. / 
 - New York :  John Wiley & Sons ,  1917. 
 - 199p. :  ill ;  23cm . 
<br/><br/><label>Subjects--Index Terms: </label>Practical Astronomy Astronomy G-Mathematics 
<br/><br/><label>Dewey Class. No.: </label>522  / H 794 T