APA (7th ed.) Zitazioa
Sidgwick, H. (1902). Philosophy its scope and relations: An introd. course of lectures.
Chicago Style (17th ed.) Zitazioa
Sidgwick, Henry. Philosophy Its Scope and Relations: An Introd. Course of Lectures. London, 1902.
MLA (9th ed.) Zitazioa
Sidgwick, Henry. Philosophy Its Scope and Relations: An Introd. Course of Lectures. 1902.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.