Cita APA (7a ed.)

HAVENS, R. (1966). Economics: Principles of income, prices and. Macinillan.

Cita Chicago Style (17a ed.)

HAVENS, R. Economics: Principles of Income, Prices and. New York: Macinillan, 1966.

Cita MLA (9a ed.)

HAVENS, R. Economics: Principles of Income, Prices and. Macinillan, 1966.