Steig, William,  1907-2003. <br/><br/>
Sylvester and the magic pebble / 
by William Steig. 
 - New York :  Windmill Books,  c1969. 
 - 32 p. :  col. illus. ;  32 cm. 
<br/><br/> In a moment of fright Sylvester the donkey asks his magic pebble to turn him into a rock but then can not hold the pebble to wish himself back to normal again. 
<br/><br/><label>ISBN: </label>067166154X 
<br/><br/><label>LCCN: </label>80012314 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Donkeys--Fiction.