Petersen, H. C., & Lewis, W. C. (1999). Managerial economics (4th ed.). Prentice Hall.
Chicago-čujuhus (17. p.)Petersen, H. Craig, juo W. Cris Lewis. Managerial Economics. 4th ed. Upper Saddle River, N.J.: Prentice Hall, 1999.
MLA-čujuhus (9. p.)Petersen, H. Craig, juo W. Cris Lewis. Managerial Economics. 4th ed. Prentice Hall, 1999.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.