Cita APA (7a ed.)

Freeman, Christopher. (1983). Long waves in the world economy. Butterworths.

Cita Chicago Style (17a ed.)

Freeman, Christopher. Long Waves in the World Economy. London: Butterworths, 1983.

Cita MLA (9a ed.)

Freeman, Christopher. Long Waves in the World Economy. Butterworths, 1983.