Cita APA (7th ed.)

Porter, G. (1976). Regional economic history. Eleutherian Mills-Hagley Foundation.

Cita Chicago (17th ed.)

Porter, Glenn. Regional Economic History. Greenville, Delaware: Eleutherian Mills-Hagley Foundation, 1976.

Cita MLA (8th ed.)

Porter, Glenn. Regional Economic History. Eleutherian Mills-Hagley Foundation, 1976.