Cita APA (7th ed.)

Garver, F. B., & Hansen, A. H. (1947). Principles of economics (3rd ed.). Ginn.

Cita Chicago (17th ed.)

Garver, Frederic Benjamin, i Alvin Harvey Hansen. Principles of Economics. 3rd ed. Boston: Ginn, 1947.

Cita MLA (9th ed.)

Garver, Frederic Benjamin, i Alvin Harvey Hansen. Principles of Economics. 3rd ed. Ginn, 1947.