APA (7 ম সংস্করণ) উদ্ধৃতি

Sidgwick, H., & Widgery, A. G. (1949). Outlines of the history of ethics: For English readers / by Henry Sidgwick. With an additional chapter by Alban G. Widgery. Macmillan.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Sidgwick, Henry, এবং Alban G. Widgery. Outlines of the History of Ethics: For English Readers / by Henry Sidgwick. With an Additional Chapter by Alban G. Widgery. London: Macmillan, 1949.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Sidgwick, Henry, এবং Alban G. Widgery. Outlines of the History of Ethics: For English Readers / by Henry Sidgwick. With an Additional Chapter by Alban G. Widgery. Macmillan, 1949.