Lua APA (7ú heag.)

Lenz, G. Periodization and american studies: Günter Lenz Encyclopedia of american studies, vol.3 / Hg. G.T. Kurian. New York, 2001.

Lua i Stíl Chicago (17ú heag.)

Lenz, Günter. "Periodization and American Studies: Günter Lenz." Encyclopedia of American Studies, Vol.3 / Hg. G.T. Kurian. New York, 2001 .

Lua MLA (8ú heag.)

Lenz, Günter. "Periodization and American Studies: Günter Lenz." Encyclopedia of American Studies, Vol.3 / Hg. G.T. Kurian. New York, 2001, .

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