. Water Power in the late nineteenth century. c. 1890-1900. Photochrom print publishd by the Detroit Publishing Company, 1905 [Source: Library of Congress LC-DIG-ppmsc-08290v.]
Library of Congress site. Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA. Viewed 9 February 2009.
Last modified 9 February 2008