The expanding circle :
Singer, Peter, 1946-
The expanding circle : ethics, evolution, and moral progress / Ethics, evolution, and moral progress Peter Singer with a new afterword by the author. - 1st Princeton University Press pbk. ed. - Princeton, N.J. : Princeton University Press, 2011. - xviii, 208p.; 21cm.
0691150699 (pbk. : alk. paper) 9780691150697 (pbk. : alk. paper)
99945739402
Ethics.
Sociobiology.
BJ51 / .S57 2011
The expanding circle : ethics, evolution, and moral progress / Ethics, evolution, and moral progress Peter Singer with a new afterword by the author. - 1st Princeton University Press pbk. ed. - Princeton, N.J. : Princeton University Press, 2011. - xviii, 208p.; 21cm.
0691150699 (pbk. : alk. paper) 9780691150697 (pbk. : alk. paper)
99945739402
Ethics.
Sociobiology.
BJ51 / .S57 2011