Robbins, R. Robert <br/><br/>
Modern astronomy  an activities approach 
R. Robert Robbins and Mary Kay Hemenway                                            
 - Austin  University of Texas Press  1982 
 - [various pagings.] 
<br/><br/><label>ISBN: </label>0-292-75064-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy<br/>Astrophysics<br/>NASA thesaurus
<br/><br/><label>Universal Decimal Class. No.: </label>52  / ROB