Columbia subject headings:
Harvard subject headings:
Communism--China--Heilongjiang Sheng--History--Sources.
Heilongjiang Sheng (China)--History--Sources.
Heilongjiang Sheng (China)--Politics and government.
Zhongguo gong chan dang--History--Sources.
Princeton subject headings:
Communism--China--Heilongjiang Sheng--History--Sources.
Heilongjiang Sheng (China)--Politics and government--Sources.
Zhongguo gong chan dang--History--Sources.