Citação norma APA

Decker, F., & Hartleb, F. (2007). Populism on difficult terrain: The right- and left-wing challenger parties in the Federal Republic of Germany. German politics.

Citação norma Chicago

Decker, Frank, and Florian Hartleb. "Populism on Difficult Terrain: The Right- and Left-wing Challenger Parties in the Federal Republic of Germany." German Politics 2007.

Citação norma MLA

Decker, Frank, and Florian Hartleb. "Populism on Difficult Terrain: The Right- and Left-wing Challenger Parties in the Federal Republic of Germany." German Politics, 2007.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.