Graaff, J. V. (1967). Theoretical welfare economics. Cambridge University press.
Chicago Style aipamenaGraaff, J.De V. Theoretical Welfare Economics. London: Cambridge University press, 1967.
MLA aipamenaGraaff, J.De V. Theoretical Welfare Economics. Cambridge University press, 1967.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.