Lebo, M. J., & Norpoth, H. (2007). The PM and the pendulum: Dynamic forecasting of British elections. British Journal of Political Science.
Citação norma ChicagoLebo, Matthew J., and Helmut Norpoth. "The PM and the Pendulum: Dynamic Forecasting of British Elections." British Journal of Political Science 2007.
Citação norma MLALebo, Matthew J., and Helmut Norpoth. "The PM and the Pendulum: Dynamic Forecasting of British Elections." British Journal of Political Science, 2007.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.