Chicago: Mark Twain, "I," What Is Man? and Other Essays, ed. Paine, Albert Bigelow, 1861-1937 and trans. Townsend, R.S. in What Is Man? and Other Essays (New York: A. L. Burt Company, 1916), Original Sources, accessed April 26, 2024, http://www.originalsources.com/Document.aspx?DocID=239K4EKTMTR3YYY.
MLA: Twain, Mark. "I." What Is Man? and Other Essays, edited by Paine, Albert Bigelow, 1861-1937, and translated by Townsend, R.S., in What Is Man? and Other Essays, Vol. 22, New York, A. L. Burt Company, 1916, Original Sources. 26 Apr. 2024. http://www.originalsources.com/Document.aspx?DocID=239K4EKTMTR3YYY.
Harvard: Twain, M, 'I' in What Is Man? and Other Essays, ed. and trans. . cited in 1916, What Is Man? and Other Essays, A. L. Burt Company, New York. Original Sources, retrieved 26 April 2024, from http://www.originalsources.com/Document.aspx?DocID=239K4EKTMTR3YYY.