Petersen, H. C., & Lewis, W. C. (1999). Managerial economics (Fourth edition.). Prentice Hall.
Chicago Style (17th ed.) ZitazioaPetersen, H. Craig, eta W. Cris Lewis. Managerial Economics. Fourth edition. Upper Saddle River, N.J: Prentice Hall, 1999.
MLA (9th ed.) ZitazioaPetersen, H. Craig, eta W. Cris Lewis. Managerial Economics. Fourth edition. Prentice Hall, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.