Cita APA (7a ed.)

McCandless, D. (2014). Knowledge is beautiful (1st printing.). Harper Design.

Cita Chicago Style (17a ed.)

McCandless, David. Knowledge Is Beautiful. 1st printing. New York: Harper Design, 2014.

Cita MLA (9a ed.)

McCandless, David. Knowledge Is Beautiful. 1st printing. Harper Design, 2014.