Carleton Watkins : The art of perception (exhibition San Francisco Museum of Modern Art, 28.05 - 07.09.1999 ; New York, Metropolitan Museum of Art, 11.10.1999 - 09.01.2000 ; Washington, National Gallery of Art, 06.02.2000 - 30.04.2000). - Nickel, Douglas R. (San Francisco Museum of Modern Art,, 1999)