Guyer, P. (1974). A History of Modern Aesthetics. Cambridge University.
Chicago Style (17th ed.) ZitazioaGuyer, Paul. A History of Modern Aesthetics. New York: Cambridge University, 1974.
MLA (9th ed.) ZitazioaGuyer, Paul. A History of Modern Aesthetics. Cambridge University, 1974.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.