BJ1-1725- Ethics (General)
BJ1188-1295- Religious ethics
BV4625-4780- Moral theology
QH301-705.5- Biology (General)
R723-726- Medical philosophy. Medical ethics.
Encyclopedia of Ethics by 
Encyclopedia of Applied Ethics - A-Der by 
Encyclopedia of Bioethics by 
Dictionary of Ethics, Theology and Society by 
Concise Dictionary of Christian Ethics by 
New Dictionary of Christian Ethics and Pastoral Theology by 
A Companion to Applied Ethics by 
The New Dictionary of Catholic Social Thought by 