Edwards, E. E., & Bowers, D. (1969). A list of references for the history of agriculture in the United States, 1790-1840. Davis: Agricultural History Center, University of California.

Edwards, Everett Eugene, and Douglas Bowers. A List of References for the History of Agriculture in the United States, 1790-1840. Davis: Agricultural History Center, University of California, 1969.

Edwards, Everett Eugene, and Douglas Bowers. A List of References for the History of Agriculture in the United States, 1790-1840. Davis: Agricultural History Center, University of California, 1969.