Cita APA (7th ed.)
ebrary, Inc, & Siegfried, J. J. (2010). Better living through economics. Harvard University Press.
Cita Chicago (17th ed.)
ebrary, Inc, i John J. Siegfried. Better Living Through Economics. Cambridge, Mass.: Harvard University Press, 2010.
Cita MLA (9th ed.)
ebrary, Inc, i John J. Siegfried. Better Living Through Economics. Harvard University Press, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.