Cita APA (7th ed.)
Purdy, J. (1984). Eustace Chisholm and the works. GMP.
Cita Chicago (17th ed.)
Purdy, James. Eustace Chisholm and the Works. London: GMP, 1984.
Cita MLA (9th ed.)
Purdy, James. Eustace Chisholm and the Works. GMP, 1984.
Atenció: Aquestes cites poden no estar 100% correctes.