Yuanzidan shi zenyang zhizao de?. 

 - Kuala Lumpur  Penerbitan Sinar Suria  1992. 
 - 101p.  col. ill.  21cm 
 - Tujie kezhi congshu .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Juvenile literature
<br/><br/><label>Dewey Class. No.: </label>500 YUA 1992