Cita APA (7a ed.)
Royal Institute of Philosophy. (1991). Royal Institute of Philosophy supplement. Cambridge University Press.
Cita Chicago Style (17a ed.)
Royal Institute of Philosophy. Royal Institute of Philosophy Supplement. Cambridge ; New York: Cambridge University Press, 1991.
Cita MLA (9a ed.)
Royal Institute of Philosophy. Royal Institute of Philosophy Supplement. Cambridge University Press, 1991.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.