Baumol, W. J. (1991). Economics: Principles and policy (Fifth edition.). Harcourt Brace Jovanovich.
Chicago Style (17. basım) AtıfBaumol, William J. Economics: Principles and Policy. Fifth edition. San Diego: Harcourt Brace Jovanovich, 1991.
MLA (8th ed.) AtıfBaumol, William J. Economics: Principles and Policy. Fifth edition. Harcourt Brace Jovanovich, 1991.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..