APA stil citiranja

Nichols, R. L. (1986). American frontier and western issues: American frontier and western issues : a historiographical review (1st publ.). New York ; Westport, Conn. ; London: Greenwood Press.

Chicago stil citiranja

Nichols, Roger L. American frontier and western issues: American frontier and western issues : a historiographical review. 1st publ. New York ; Westport, Conn. ; London: Greenwood Press, 1986.

MLA stil citiranja

Nichols, Roger L. American frontier and western issues: American frontier and western issues : a historiographical review. 1st publ. New York ; Westport, Conn. ; London: Greenwood Press, 1986.