Armstrong, M., & Vickers, J. (2012). Consumer protection and contingent charges. American Economic Association.
Chicago-čujuhus (17. p.)Armstrong, M., juo J. Vickers. Consumer Protection and Contingent Charges. American Economic Association, 2012.
MLA-čujuhus (9. p.)Armstrong, M., juo J. Vickers. Consumer Protection and Contingent Charges. American Economic Association, 2012.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.