APA-čujuhus (7. p.)
Petersen, H. C., & Lewis, W. (1999). Managerial Economics (4th ed.). Pearson Education.
Chicago-čujuhus (17. p.)
Petersen, H. Craig, juo W.Cris Lewis. Managerial Economics. 4th ed. Singapore: Pearson Education, 1999.
MLA-čujuhus (9. p.)
Petersen, H. Craig, juo W.Cris Lewis. Managerial Economics. 4th ed. Pearson Education, 1999.
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