Citação norma APA

Lehmann, H., & Sheehan, J. J. (1991). An interrupted past: German-speaking refugee historians in the United States after 1933. German Historical Institute.

Citação norma Chicago

Lehmann, Hartmut, and James J. Sheehan. An Interrupted Past: German-speaking Refugee Historians in the United States After 1933. Washington, D.C: German Historical Institute, 1991.

Citação norma MLA

Lehmann, Hartmut, and James J. Sheehan. An Interrupted Past: German-speaking Refugee Historians in the United States After 1933. German Historical Institute, 1991.

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