What is man? :
and other essays /
by Mark Twain.
APA Citation
Twain, M. (1917). What is man?: and other essays. New York: Harper and Bros..
MLA Citation
Twain, Mark, 1835-1910. What Is Man?: And Other Essays. New York: Harper and Bros., 1917.
Warning: These citations may not always be complete (especially for serials).