Luper, S. (2002). A guide to ethics. Boston: McGraw-Hill.
Trích dẫn kiểu ChicagoLuper, Steven. A Guide to Ethics. Boston: McGraw-Hill, 2002.
MLA citiranjeLuper, Steven. A Guide to Ethics. Boston: McGraw-Hill, 2002.
Opozorilo: Ti citati niso vedno 100% točni.