Peterson, Gale E.
1967. "The Discovery and Development of 2,4-." Agricultural History, 41 (July 1967): 243-253.
1967. "Living Historical Farms: A Feasibility Study." Smithsonian Journal of History, 2 (Summer 1967): 72-76.
Schlebecker, John T.
1965. "The Great Holding Action: The NFO in September, 1962." Agricultural History, 39 (October 1965): 204-213. [Reprinted in Readings in Collective Behavior, edited by Robert B. Evans. Chicago: Rand McNally, 1969.]
1966. "Research in Agricultural History at the Smithsonian Institution." Agricultural History, 40 (July 1966): 207-210.
1966. "The Combine Made in Stockton." The Pacific Historian, 10 (Autumn 1966): 14-21. Illustrated.
1967. A History of American Dairying. Chicago: Rand McNally. 48 pages, illustrated.
1967. A Bibliography of Books and Pamphlets on the History of American Agriculture, 1607-1967. Santa Barbara: Clio Press. 182 pages.
1967. "Agriculture in Western Nebraska, 1906-1966." Nebraska History, 48 (Autumn 1967): 249-266.