Cita APA (7th ed.)

Baumol, W. J. (1991). Economics: Principles and policy (Fifth edition.). Harcourt Brace Jovanovich.

Cita Chicago (17th ed.)

Baumol, William J. Economics: Principles and Policy. Fifth edition. San Diego: Harcourt Brace Jovanovich, 1991.

Cita MLA (8th ed.)

Baumol, William J. Economics: Principles and Policy. Fifth edition. Harcourt Brace Jovanovich, 1991.