Columbia subject headings:
Harvard subject headings:
Cheng, Hao, 1032-1085
Cheng, Yi, 1033-1107
Neo-Confucianism--China.
Philosophers--China--Biography
Princeton subject headings:
Cheng, Hao, 1032-1085.
Cheng, Yi, 1033-1107.
Neo-Confucianism.