Naef, Weston J. and James N. Wood. Era of Exploration: The Rise of Landscape Photography in the American West, 1860-1885, with an essay by Therese Thau Heyman (Buffalo: Albright-Knox Art Gallery; Boston: distributed by New York Graphic Society, 1975), pl. 2.
Naef, Weston J. Carleton Watkins in Yosemite (Los Angeles : J. Paul Getty Museum, 2008), pl. 8.