APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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