Columbia subject headings:
Harvard subject headings:
Autobiographies
Helicopter pilots--Biography.
Mason, Robert, 1942-
Personal narratives
United States. Army--Warrant officers--Biography.
Vietnam War, 1961-1975--Aerial operations, American
Vietnam War, 1961-1975--Personal narratives, American
Princeton subject headings:
Helicopter pilots--Biography.
Mason, Robert L. (Robert Lee), 1946-
United States. Army--Warrant officers--Biography.
Vietnam War, 1961-1975--Aerial operations, American.
Vietnam War, 1961-1975--Personal narratives, American.