Cita APA (7th ed.)

O'Brien, G. (2003). An essay on the economic effects of the reformation. IHS Press.

Cita Chicago (17th ed.)

O'Brien, George. An Essay on the Economic Effects of the Reformation. Norfolk, VA: IHS Press, 2003.

Cita MLA (9th ed.)

O'Brien, George. An Essay on the Economic Effects of the Reformation. IHS Press, 2003.