SHU, Frank H. <br/><br/>
The physical universe : an introduction to astronomy / 
Frank H. Shu. 
 -- California :   University Science Books,   cop. 1982 
 - 584 p. 
<br/><br/>ISBN 0-19-855706-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomía
<br/><br/><label>Universal Decimal Class. No.: </label>52