Parker, George W. . <br/><br/>
Elements of Astronomy /  Textual Documents 
George W.Parker. 
 - 4th ed. / 
 - Patna :  Scinetific Book Co. ,  1959. 
 - vii,240p. ;  22cm. 
<br/><br/>Index 
<br/><br/><label>Subjects--Index Terms: </label>Astronomy G-Mathematics T/G- Mathematics G-Math T/G-Astronomy T/G-Astronomy 
<br/><br/><label>Dewey Class. No.: </label>523  / P 225 El