Columbia subject headings:
Philosophers--England--Biography.
Philosophers--United States--Biography.
Watts, Alan, 1915-1973.
Harvard subject headings:
Philosophers--England--Biography
Philosophers--United States--Biography
Watts, Alan, 1915-1973
Princeton subject headings:
Philosophers--England--Biography.
Philosophers--United States--Biography.
Watts, Alan, 1915-1973.