Ansel Adams and Nancy Newhall, This is the American Earth (San Francisco, 1960), p. 76
Ansel Adams, Ansel Adams: An Autobiography (Boston, 1985), p. 103
James Alinder and John Szarkowski, Ansel Adams: Classic Images (Boston, 1985), pl. 12
Peter Galassi, Ansel Adams in Yosemite Valley: Celebrating the Park at 150 (Boston, 2014), p. 133
Barbara Buhler Lynes, Sandra S. Phillips, and Richard B. Woodward, Georgia O"Keeffe and Ansel Adams: Natural Affinities (Boston, 2008), p. 116
Liliane de Cock Morgan, ed., Ansel Adams (Hastings-on-Hudson, 1972) , pl. 69
Michael Read, ed., Ansel Adams, New Light: Essays on His Legacy and Legend (San Francisco, 1993), p. 67
John P. Schaefer, The Ansel Adams Guide Book 1: Basic Techniques of Photography (Boston, 1992), fig. 6.20
Andrea Gray Stillman, ed., Yosemite: Ansel Adams (Boston, 1995) , p. 41
Andrea Gray Stillman, ed., Ansel Adams: 400 Photographs (Boston, 2007), p. 129
John Szarkowski, The Portfolios of Ansel Adams (Boston, 1977), p. 50