Chicago:
"Evolution," The Library of Original Sources, Vol 9 in The Library of Original Sources, ed. Oliver J. Thatcher (Milwaukee, Wisconsin: University Research Extension Co., 1907), Original Sources, accessed October 30, 2025, http://originalsources.com/Document.aspx?DocID=I7W5QM6LKCK33CT.
MLA:
. "Evolution." The Library of Original Sources, Vol 9, in The Library of Original Sources, edited by Oliver J. Thatcher, Milwaukee, Wisconsin, University Research Extension Co., 1907, Original Sources. 30 Oct. 2025. http://originalsources.com/Document.aspx?DocID=I7W5QM6LKCK33CT.
Harvard:
, 'Evolution' in The Library of Original Sources, Vol 9. cited in 1907, The Library of Original Sources, ed. , University Research Extension Co., Milwaukee, Wisconsin. Original Sources, retrieved 30 October 2025, from http://originalsources.com/Document.aspx?DocID=I7W5QM6LKCK33CT.