10 books
Selected References on the History of Agriculture in the United States (Classic Reprint)
A List of American Economic Histories (Classic Reprint)
Agriculture of the American Indians
References on the Significance of the Frontier in American History (Classic Reprint)
Selected References on the History of English Agriculture (Classic Reprint)
References on Agricultural Museums (Classic Reprint)
References on Agriculture in the Life of the Nation (Classic Reprint)
Middle Western Agricultural History as a Field of Research (Classic Reprint)
Rivista Contemporanea (49)
Washington, Jefferson, Lincoln, and Agriculture