Singer, P. (1995). How are we to live?: Ethics in an age of self-interest. Prometheus Books.
Chicago-Zitierstil (17. Ausg.)Singer, Peter. How Are We to Live?: Ethics in an Age of Self-interest. Amherst, NY: Prometheus Books, 1995.
MLA-Zitierstil (9. Ausg.)Singer, Peter. How Are We to Live?: Ethics in an Age of Self-interest. Prometheus Books, 1995.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.