Sŏ, Chŏng-bong,  1905- <br/><br/>
Sojŏng sichʻo / 
Sŏ Chŏng-bong chŏ. 
 - Sŏul-si :  Hyŏndaesa,  4286 [1953] 
 - 108 p. :  ill. ;  19 cm. 
<br/><br/><label>LCCN: </label>k  61000631  
<br/><br/><label>LC Class. No.: </label>PL992.74.C392  / S65 1953