@BOOK{ Book!D - 69438842,
AUTHOR = "By Friedrich Paulsen ; Edited and Translated with the Author's sanction, from the fourth revised and enlarged edition By Frank Thilly",
TITLE = "A System Of Ethics",
LIBRARY= "كتابخانه دانشكده ادبيات دانشگاه تهران",
SUBJECT = "Ethics.",
URL = "/book/69438842/A-System-Of-Ethics/"}