Παραπομπή σε μορφή APA (7η εκδ.)

Keil, H. Work, Democracy, and Culture in the Ninetheenth-Century America: Hartmut Keil. Democracy and the arts in the United States.(1996).

Παραπομπή σε μορφή Chicago (17η εκδ.)

Keil, Hartmut. "Work, Democracy, and Culture in the Ninetheenth-Century America: Hartmut Keil." Democracy and the Arts in the United States.(1996) .

Παραπομπή σε μορφή MLA (8th εκδ.)

Keil, Hartmut. "Work, Democracy, and Culture in the Ninetheenth-Century America: Hartmut Keil." Democracy and the Arts in the United States.(1996), .