Columbia subject headings:
Harvard subject headings:
City planning--Korea (North)--P'yŏngyang--History--20th century.
City planning--Korea (North)--P'yŏngyang--History--21st century.
Princeton subject headings:
City planning--Korea (North)--P'yŏngyang--History--21st century.
P'yŏngyang (Korea)--Description and travel.
P'yŏngyang (Korea)--History.
Urbanization--Korea (North)--P'yŏngyang--History.