Cita APA (7th ed.)

Evans,Douglas. (1974). The Politics of trade: The evolution of the superbles. Halstead.

Cita Chicago (17th ed.)

Evans,Douglas. The Politics of Trade: The Evolution of the Superbles. NewYork: Halstead, 1974.

Cita MLA (9th ed.)

Evans,Douglas. The Politics of Trade: The Evolution of the Superbles. Halstead, 1974.