Ding dong ! zhe shi shen me sheng yin? 

 - 24 pages :  colour illustrations ;  21 cm. 
 - Cai yi cai .
 - Cai yi cai .
<br/><br/><label>ISBN: </label>9789830061511 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sound--Juvenile literature
<br/><br/><label>Dewey Class. No.: </label>534