Cita APA (7a ed.)

Kemp, M. (1964). The pure theory of international trade. Prentice Hall.

Cita Chicago Style (17a ed.)

Kemp, Murray. The Pure Theory of International Trade. Englewood Cliffs: Prentice Hall, 1964.

Cita MLA (9a ed.)

Kemp, Murray. The Pure Theory of International Trade. Prentice Hall, 1964.