Columbia subject headings:
Harvard subject headings:
Ho, Peng-yoke, 1926-
Needham, Joseph, 1900-1995.
Science--China--History
Scientists--Great Britain--Biography
Technology--China--History
Princeton subject headings:
Ho, Peng Yoke, 1926-
Needham, Joseph, 1900-1995.
Science--China--History.
Scientists--Great Britain--Biography.
Technology--China--History.