Schultz, Bart.

The happiness philosophers[electronic resource] :the lives and works of the great utilitarians / …で: Schultz, Bart. (コンピュータ・メディア)

Henry Sidgwick - eye of the universe[electronic resource] :an intellectual biography / …で: Schultz, Bart.; Sidgwick, Henry, (1838-1900.) (言語・文字資料 (印刷物))