Yoo, Jeong Kap <br/><br/>
A discussion on the other territory of the north 
Yoo Jeong Kap 
 - (s.l.)  Bopkyong Publishing  1990 
 - 339 p. : ill. ; 24 cm. 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Korea (North)--History