Gerrold, David,  1944- <br/><br/>
Worlds of wonder :  how to write science fiction & fantasy / 
David Gerrold 
 - Cincinnati, Ohio :  Writer's Digest Books,  2001 
 - 246 p. ;  20 cm 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>1582970076  RM58.90 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science fiction--Authorship