APA-čujuhus (7. p.)
O'Brien, G. (2003). An essay on the economic effects of the reformation. IHS Press.
Chicago-čujuhus (17. p.)
O'Brien, George. An Essay on the Economic Effects of the Reformation. Norfolk, VA: IHS Press, 2003.
MLA-čujuhus (9. p.)
O'Brien, George. An Essay on the Economic Effects of the Reformation. IHS Press, 2003.
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