Cita APA (7th ed.)

Petersen, H. C., & Lewis, W. C. (1999). Managerial economics (Fourth edition.). Prentice Hall.

Cita Chicago (17th ed.)

Petersen, H. Craig, i W. Cris Lewis. Managerial Economics. Fourth edition. Upper Saddle River, N.J: Prentice Hall, 1999.

Cita MLA (9th ed.)

Petersen, H. Craig, i W. Cris Lewis. Managerial Economics. Fourth edition. Prentice Hall, 1999.