Baumol, W. J. (2009). Contemporary Economics: Principles and policy. Cengage Learning.
Chicago-čujuhus (17. p.)Baumol, William J. Contemporary Economics: Principles and Policy. New Delhi: Cengage Learning, 2009.
MLA-čujuhus (9. p.)Baumol, William J. Contemporary Economics: Principles and Policy. Cengage Learning, 2009.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.