Friedman, Alan J <br/><br/>
Planetarium educator's workshop guide 
Alan J Friedman                                            
 - California  International Planetarium Society  1980 
 - 196p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and Astrophysics Thesaurus<br/>Planetaria
<br/><br/><label>Universal Decimal Class. No.: </label>520.98  / FRI