Columbia subject headings:
Harvard subject headings:
Friends of Photography. Gallery--Exhibitions.
Landscape photography--Exhibitions.
Landscape photography.
Pfahl, John, 1939-2020
Pfahl, John, 1939-2020--Exhibitions.
Princeton subject headings:
Landscape photography--United States.
Pfahl, John, 1939-
Photographers--United States--Biography.
Photography, Artistic.