APA način citiranja (7. izdanje)
Twain, M. (2001). What is man? and other essays of Mark Twain. Infomotions, Inc. ; Project Gutenburg.
Čikaški stil citiranja (17. izdanje)
Twain, Mark. What Is Man? and Other Essays of Mark Twain. [South Bend, IN] : [Salt Lake City, Utah]: Infomotions, Inc. ; Project Gutenburg, 2001.
MLA način citiranja (9. izdanje)
Twain, Mark. What Is Man? and Other Essays of Mark Twain. Infomotions, Inc. ; Project Gutenburg, 2001.
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