Cita APA (7th ed.)

Gregory, C. A. (1989). Observing the economy. Routledge.

Cita Chicago (17th ed.)

Gregory, Christroper A. Observing the Economy. New York: Routledge, 1989.

Cita MLA (9th ed.)

Gregory, Christroper A. Observing the Economy. Routledge, 1989.