Columbia subject headings:
Human body--Social aspects--History--19th century--Congresses.
Human body--Social aspects--History--20th century--Congresses.
Human-machine systems--History--19th century--Congresses.
Human-machine systems--History--20th century--Congresses.
Technology--Social aspects--History--19th century--Congresses.
Technology--Social aspects--History--20th century--Congresses.
Harvard subject headings:
Human engineering--History--19th century.
Human engineering--History--20th century.
Human-machine systems--History--19th century.
Human-machine systems--History--20th century.
Princeton subject headings:
Human engineering--History--19th century.
Human engineering--History--20th century.
Human-machine systems--History--19th century.
Human-machine systems--History--20th century.