Economic development in the Democratic People's Republic of Korea / by Hong Sŭng-ŭn. Hong, Sung Un. MLCS 93/04064 (H) 338.9519 UNE Pyongyang, Korea : Foreign Languages Pub. House, 1990. 1990. 1990 Text 66 p., [12] p. of plates : eng Korea (North) Economic policy.