Chicago: "Highways," Republican Party Platform of 1928 in Donald B. Johnson, Ed. National Party Platforms, 1840–1976. Supplement 1980. (Champaign-Urbana: University of Illinois), P.286 Original Sources, accessed December 6, 2024, http://www.originalsources.com/Document.aspx?DocID=V6AHW5A2JX3K6HU.
MLA: . "Highways." Republican Party Platform of 1928, in Donald B. Johnson, Ed. National Party Platforms, 1840–1976. Supplement 1980. (Champaign-Urbana: University of Illinois), P.286, Original Sources. 6 Dec. 2024. http://www.originalsources.com/Document.aspx?DocID=V6AHW5A2JX3K6HU.
Harvard: , 'Highways' in Republican Party Platform of 1928. cited in , Donald B. Johnson, Ed. National Party Platforms, 1840–1976. Supplement 1980. (Champaign-Urbana: University of Illinois), P.286. Original Sources, retrieved 6 December 2024, from http://www.originalsources.com/Document.aspx?DocID=V6AHW5A2JX3K6HU.