Παραπομπή σε μορφή APA (7η εκδ.)

Barkin, K. D. (1970). The controversy over German industrialization, 1890-1902. University of Chicago Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Barkin, Kenneth D. The Controversy over German Industrialization, 1890-1902. Chicago: University of Chicago Press, 1970.

Παραπομπή σε μορφή MLA (9th εκδ.)

Barkin, Kenneth D. The Controversy over German Industrialization, 1890-1902. University of Chicago Press, 1970.