Columbia subject headings:
Harvard subject headings:
Ch'ungch'ŏng-bukto (Korea)--Antiquities.
Excavations (Archaeology)--Korea (South)--Chʻungchʻŏng-pukto.
Fortification--Korea (South)--Chʻungchʻŏng-pukto.
Sangdang Sansŏng (Chʻŏngju-si, Korea)
Princeton subject headings:
Ch'ŏngju-si (Ch'ungch'ŏng-bukto, Korea)--Antiquities.
Excavations (Archaeology)--Korea (South)--Ch'ŏngju-si (Ch'ungch'ŏng-bukto).
Fortification--Korea (South)--Ch'ŏngju-si (Ch'ungch'ŏng-bukto).
Sangdang Sansŏng (Ch'ŏngju-si, Ch'ungch'ŏng-bukto, Korea)