Citazione APA

Campbell, H. (1880). Unto the third and fourth generation: A study. Fords, Howard & Hulbert.

Stile di citazione Chicago

Campbell, Helen. Unto the Third and Fourth Generation: A Study. New York: Fords, Howard & Hulbert, 1880.

Citazione MLA

Campbell, Helen. Unto the Third and Fourth Generation: A Study. Fords, Howard & Hulbert, 1880.