Columbia subject headings:
Barber, Craig.
Vietnam--Pictorial works.
Harvard subject headings:
Barber, Craig J.--Exhibitions.
Vietnam--Pictorial works--Exhibitions.
Vietnam--Pictorial works.
Princeton subject headings:
Barber, Craig--Exhibitions.
Travel photography--Exhibitions.
Vietnam--Description and travel--Exhibitions.
Vietnam--Pictorial works--Exhibitions.