APA (7th ed.) Citation

Calkins, E. E. (1937). They broke the prairie: Being some account of the settlement of the upper Mississippi valley by religious and educational pioneers, told in terms of one city, Galesburg, and of one college, Knox, by Earnest Elmo Calkins. C. Scribner's sons.

Chicago Style (17th ed.) Citation

Calkins, Earnest Elmo. They Broke the Prairie: Being Some Account of the Settlement of the Upper Mississippi Valley by Religious and Educational Pioneers, Told in Terms of One City, Galesburg, and of One College, Knox, by Earnest Elmo Calkins. New York: C. Scribner's sons, 1937.

MLA (9th ed.) Citation

Calkins, Earnest Elmo. They Broke the Prairie: Being Some Account of the Settlement of the Upper Mississippi Valley by Religious and Educational Pioneers, Told in Terms of One City, Galesburg, and of One College, Knox, by Earnest Elmo Calkins. C. Scribner's sons, 1937.