Books
- Mycorrhizal Ecology (Ecological Studies)
- Fordson, Farmall, and Poppin' Johnny: A History of the Farm Tractor and Its Impact on America
- Preserving the Family Farm : Women, Community, and the Foundations of Agribusiness in the Midwest, 1900-1940 (Revisiting Rural America)
- Ancient Agriculture: From Foraging to Farming (Ancient Technology)
- The Plant Disease Clinic and Field Diagnosis of Abiotic Diseases
Books