Cita APA (7th ed.)

Barkley, P. W. (1977). Economics: The way we choose. Harcourt Brace Jovanovich.

Cita Chicago (17th ed.)

Barkley, Paul W. Economics: The Way We Choose. New York: Harcourt Brace Jovanovich, 1977.

Cita MLA (9th ed.)

Barkley, Paul W. Economics: The Way We Choose. Harcourt Brace Jovanovich, 1977.