Columbia subject headings:
Harvard subject headings:
Jaffé-Richthofen, Else, 1874-1973--Family.
Richthofen family.
Social scientists--Germany--Biography.
Weber, Alfred, 1868-1958.
Weber, Max, 1864-1920.
Princeton subject headings:
Jaffé-Richthofen, Else, 1874-1973.
Weber, Alfred, 1868-1958.
Weber, Max, 1864-1920.