Cita APA (7th ed.)

Houston, S., & Roberts, M. T. (1999). 1848-1852. University of North Texas Press.

Cita Chicago (17th ed.)

Houston, Sam, i Madge Thornall Roberts. 1848-1852. Denton, TX: University of North Texas Press, 1999.

Cita MLA (9th ed.)

Houston, Sam, i Madge Thornall Roberts. 1848-1852. University of North Texas Press, 1999.