^Compiled by the Senate Library under the direction of Francis R. Valeo, Secretary of the Senate, and Richard D. Hupman, Librarian (1972). "State Primary Elections, 1972, by dates". Factual Campaign Information. Washington D.C.: United States Government Printing Office. p. 6.{{cite book}}: CS1 maint: multiple names: authors list (link)
^King, Seth (November 9, 1972). "Midwest's Independence Survives Sweep by Nixon". New York Times. New York, N.Y. p. 20. Retrieved July 6, 2021.
^"Letter to the Editors". Kansas History: A Journal of the Central Plains. 35 (4). Lawrence, Kansas: Kansas Historical Foundation: 266. Winter 2012–2013. Retrieved July 6, 2021.
^"Kay Wins In Upset" (PDF). Ripon Forum. Vol. VIII, no. 16. Cambridge, Massachusetts: Ripon Society, Inc. August 15, 1972. p. 5.
^ a bCongressional Quarterly 1998, p. 121.
^ a bAmerica Votes 10, p. 143.
^"Incumbents Win Primaries" (PDF). The Daily Register. Red Bank, N.J. August 2, 1972. p. 3. Retrieved July 6, 2021.
^"KS US Senate, 1972 - R Primary". Our Campaigns. Retrieved July 5, 2021.
^Congressional Quarterly 1998, p. 86.
^America Votes 10, p. 134.
^"KS US Senate, 1972". Our Campaigns. Retrieved July 5, 2021.
Congressional Elections, 1946-1996. Washington, D.C.: Congressional Quarterly Inc. 1998. ISBN1-56802-248-4.
Scammon, Richard M., ed. (1973). America Votes 10: a handbook of contemporary American election statistics, 1972. Washington, D.C.: Governmental Affairs Institute.