Tolfree, W. (1971). Questions & answers on monetary theory. Issac Pitman.
Chicago-čujuhus (17. p.)Tolfree, W. Questions & Answers on Monetary Theory. London: Issac Pitman, 1971.
MLA-čujuhus (9. p.)Tolfree, W. Questions & Answers on Monetary Theory. Issac Pitman, 1971.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.