Yi, Yông-sôk 李 英石 <br/><br/>
Yadang sasim nyôn sa 野黨 40年 史   
Yi, Yông-sôk 李 英石 
 - Sôul  1987  인간사  1987 
 - 635 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Politics -- Political Parties -- Opposition Parties -- History Of The Opposition Parties In South Korea -- Since Liberation