Mahy, Margaret. <br/><br/>
A very wicked headmistress / 
by Margaret Mahy ; illustrated by Margaret Chamberlain. 
 - London :  Puffin,  1995, c1984. 
 - 76 p. :  ill ;  18 cm. 
<br/><br/> Originally published: London : Dent, 1984. 
<br/><br/><label>ISBN: </label>0140376461 (pbk.) : £3.50