APA ציטוט

 Pence, G. E. (2007).  The elements of bioethics.  McGraw-Hill.

Trích dẫn kiểu Chicago

 Pence, Gregory E.  The Elements of Bioethics.  McGraw-Hill, 2007.

ציטוט MLA

 Pence, Gregory E.  The Elements of Bioethics.  McGraw-Hill, 2007.