Edward Hitchcock draft, "Supplement to the Ichnology of New England"

Chicago citation style
Hitchcock, Edward, 1793-1864. Edward Hitchcock draft, "Supplement to the Ichnology of New England". 1863. Retrieved from the Digital Public Library of America, http://acdc.amherst.edu/view/asc:77825. (Accessed June 21, 2018.)
APA citation style
Hitchcock, Edward, 1793-1864, (1863) Edward Hitchcock draft, "Supplement to the Ichnology of New England". Retrieved from the Digital Public Library of America, http://acdc.amherst.edu/view/asc:77825
MLA citation style
Hitchcock, Edward, 1793-1864. Retrieved from the Digital Public Library of America <http://acdc.amherst.edu/view/asc:77825>.
Note: These citations are programmatically generated and may be incomplete.