Style de citation APA (7e éd.)
Portugal, P. (2007). U.S. unemployment duration: Has long become longer or short become shorter? Czech National Bank.
Style de citation Chicago (17e éd.)
Portugal, Pedro. U.S. Unemployment Duration: Has Long Become Longer or Short Become Shorter? Praha: Czech National Bank, 2007.
Style de citation MLA (9e éd.)
Portugal, Pedro. U.S. Unemployment Duration: Has Long Become Longer or Short Become Shorter? Czech National Bank, 2007.
Attention : ces citations peuvent ne pas être correctes à 100%.