Dyfyniad APA
ebrary, Inc, Parijs, P. v., Cohen, J., & Rogers, J. (2001). What's wrong with a free lunch? Beacon Press.
Dyfyniad Arddull Chicago
ebrary, Inc, Philippe van Parijs, Joshua Cohen, and Joel Rogers. What's Wrong with a Free Lunch? Boston, Mass.: Beacon Press, 2001.
Dyfyniad MLA
ebrary, Inc, et al. What's Wrong with a Free Lunch? Beacon Press, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.