Chicago: Mark Twain, "What Is Man?," What Is Man? and Other Essays Original Sources, accessed April 20, 2024, http://originalsources.com/Document.aspx?DocID=52W7B9JFTI7J2ZS.
MLA: Twain, Mark. "What Is Man?." What Is Man? and Other Essays, Original Sources. 20 Apr. 2024. http://originalsources.com/Document.aspx?DocID=52W7B9JFTI7J2ZS.
Harvard: Twain, M, 'What Is Man?' in What Is Man? and Other Essays. Original Sources, retrieved 20 April 2024, from http://originalsources.com/Document.aspx?DocID=52W7B9JFTI7J2ZS.