Schell, J. (2015). The art of game design: A book of lenses (Second edition.). CRC Press.
Chicago Style (17th ed.) ZitazioaSchell, Jesse. The Art of Game Design: A Book of Lenses. Second edition. Boca Raton,USA: CRC Press, 2015.
MLA (9th ed.) ZitazioaSchell, Jesse. The Art of Game Design: A Book of Lenses. Second edition. CRC Press, 2015.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.