APA (7th ed.) Citation

Hensel, D. W. (1957). A history of the Colorado Constitution in the nineteenth century. [publisher not identified].

Chicago Style (17th ed.) Citation

Hensel, Donald Wayne. A History of the Colorado Constitution in the Nineteenth Century. [Boulder, Colo.]: [publisher not identified], 1957.

MLA (8th ed.) Citation

Hensel, Donald Wayne. A History of the Colorado Constitution in the Nineteenth Century. [publisher not identified], 1957.