McIntyre, K. B. (2011). Herbert Butterfield: History, providence, and skeptical politics. ISI Books.
Chicago-čujuhus (17. p.)McIntyre, Kenneth B. Herbert Butterfield: History, Providence, and Skeptical Politics. Wilmington, Delaware: ISI Books, 2011.
MLA-čujuhus (9. p.)McIntyre, Kenneth B. Herbert Butterfield: History, Providence, and Skeptical Politics. ISI Books, 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.