Columbia subject headings:
Colby, William Egan, 1920-1996.
Vietnam War, 1961-1975--Personal narratives, American.
Vietnam War, 1961-1975--United States.
Harvard subject headings:
Colby, William Egan, 1920-
Colby, William Egan, 1920-1996.
Vietnam War, 1961-1975--Personal narratives, American
Vietnam War, 1961-1975--United States
Princeton subject headings:
Colby, William Egan, 1920-1996.
Vietnam War, 1961-1975--Personal narratives, American.
Vietnam War, 1961-1975--United States.