Schneider, Leo . <br/><br/>
Explorin the Universe /  Textual Documents 
Leo Schneider. 
 - 1st ed. / 
 - New York :  Macmillan and co ,  1963. 
 - 109p. :  ill ;  21cm . 
<br/><br/><label>Subjects--Index Terms: </label>Astronomy G-Mathematics 
<br/><br/><label>Dewey Class. No.: </label>520  / Sc 58 Ex