Knock ! knock :   a book of laughs 

 - 32 pages :   colour illustrations ;   23 cm 
 - Waves : language across the curriculum .
 - Waves : language across the curriculum .
<br/><br/><label>ISBN: </label>0395559774 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Readers
<br/><br/><label>Dewey Class. No.: </label>428.6