Luper, S. (2002). A guide to ethics. Boston: McGraw-Hill.
Trích dẫn kiểu ChicagoLuper, Steven. A Guide to Ethics. Boston: McGraw-Hill, 2002.
MLA引文Luper, Steven. A Guide to Ethics. Boston: McGraw-Hill, 2002.
警告：這些引文格式不一定是100％准確.
APA引文