Citazione APA

Mackenzie, R. (1880). The 19th century: A history. T. Nelson and sons.

Stile di citazione Chicago

Mackenzie, Robert. The 19th Century: A History. London, New York: T. Nelson and sons, 1880.

Citazione MLA

Mackenzie, Robert. The 19th Century: A History. T. Nelson and sons, 1880.