Cita APA (7a ed.)

Harvey, C. E. (1977). The Economics of Kentucky Coal. The University Press of Kentucky.

Cita Chicago Style (17a ed.)

Harvey, Curtis E. The Economics of Kentucky Coal. Lexington: The University Press of Kentucky, 1977.

Cita MLA (8a ed.)

Harvey, Curtis E. The Economics of Kentucky Coal. The University Press of Kentucky, 1977.

Precaución: Estas citas no son 100% exactas.