Gwon, Chanho. <br/><br/>
Curious science ; volcano & earthquake (Korean) : 퀴즈 과학상식 화산 지진 / 
Chanho Gwon. 
 - Seoul, Korea :  Geulsongi,  2008. 
 - 203 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Korean language materials.