Chicago: "The Geographical Discoveries," The Library of Original Sources, Vol 5 in The Library of Original Sources, ed. Oliver J. Thatcher (Milwaukee, Wisconsin: University Research Extension Co., 1907), Original Sources, accessed February 8, 2025, http://originalsources.com/Document.aspx?DocID=61N6QCVDQT9YIV9.
MLA: . "The Geographical Discoveries." The Library of Original Sources, Vol 5, in The Library of Original Sources, edited by Oliver J. Thatcher, Milwaukee, Wisconsin, University Research Extension Co., 1907, Original Sources. 8 Feb. 2025. http://originalsources.com/Document.aspx?DocID=61N6QCVDQT9YIV9.
Harvard: , 'The Geographical Discoveries' in The Library of Original Sources, Vol 5. cited in 1907, The Library of Original Sources, ed. , University Research Extension Co., Milwaukee, Wisconsin. Original Sources, retrieved 8 February 2025, from http://originalsources.com/Document.aspx?DocID=61N6QCVDQT9YIV9.