Friedman Herbert <br/><br/>
Amazing universe 

 - Washington  NAtional Geographic Society       1975 
 - 200p.  cm. 
<br/><br/><label>Standard No.: </label>76232 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Astronomy<br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>B9, L52;1