Abrego, L., Reizman, R., & Whalley, J. (2001). How often are propositions on the effects of customs unions theoretical curiosa and when should they guide policy? National Bureau of Economic Research.
Citação do estilo Chicago (17ª ed.)Abrego, Lisandro, Raymond Reizman, e John Whalley. How Often Are Propositions on the Effects of Customs Unions Theoretical Curiosa and When Should They Guide Policy? Cambridge: National Bureau of Economic Research, 2001.
Citação MLA (9ª ed.)Abrego, Lisandro, et al. How Often Are Propositions on the Effects of Customs Unions Theoretical Curiosa and When Should They Guide Policy? National Bureau of Economic Research, 2001.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.