Cita APA (7a ed.)
Butchvarov, P. (1998). Skepticism about the external world. Oxford University Press.
Cita Chicago Style (17a ed.)
Butchvarov, Panayot. Skepticism About the External World. New York: Oxford University Press, 1998.
Cita MLA (9a ed.)
Butchvarov, Panayot. Skepticism About the External World. Oxford University Press, 1998.
Precaución: Estas citas no son 100% exactas.