Columbia subject headings:
Harvard subject headings:
Archaeologists--Germany--Biography
Archaeologists--Guatemala--Biography.
Archaeologists--Mexico--Biography.
Maler, Teobert, 1842-1914.
Photographers--Germany--Biography
Photographers--Guatemala--Biography.
Photographers--Mexico--Biography
Princeton subject headings:
Archaeologists--Mexico--Biography.
Maler, Teobert, 1842-1914.
Photographers--Mexico--Biography.