Dyfyniad APA
ebrary, Inc, Weston, P. E., & Townsend, R. N. (2009). Welfare economics. Nova Science Publishers.
Dyfyniad Arddull Chicago
ebrary, Inc, Paul E. Weston, and Robert N. Townsend. Welfare Economics. New York: Nova Science Publishers, 2009.
Dyfyniad MLA
ebrary, Inc, et al. Welfare Economics. Nova Science Publishers, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.