Asimov, Janet <br/><br/>
Norby and the court jester / 
by Janet and Isaac Asimov. 
 - New York :  Walker and Company,  1991. 
 - 118p 
<br/><br/> Summary: While visiting the toy and game fair on planet Izz, Jeff and Norby search for a missing robot and the villain responsible for sabotaging the planet's computer system. 
<br/><br/><label>ISBN: </label>0-8027-8131-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Robots--Fiction<br/>Science fiction<br/>Mystery and detective stories