* The Third Wave Foundation* Tong, R. and Williams N., Stanford Encyclopedia of Philosophy, Feminist Ethics, First published Tue May 12, 1998; substantive revision Mon May 4, 2009.
* The Third Wave Foundation* Tong, R. and Williams N., Stanford Encyclopedia of Philosophy, Feminist Ethics, First published Tue May 12, 1998; substantive revision Mon May 4, 2009.