Chicago: U.S. Supreme Court, "Syllabus," Helvering v. Kehoe, 309 U.S. 277 (1940) in 309 U.S. 277 309 U.S. 278. Original Sources, accessed April 19, 2025, http://originalsources.com/Document.aspx?DocID=GPLR4ERZ8DWHGVA.
MLA: U.S. Supreme Court. "Syllabus." Helvering v. Kehoe, 309 U.S. 277 (1940), in 309 U.S. 277, page 309 U.S. 278. Original Sources. 19 Apr. 2025. http://originalsources.com/Document.aspx?DocID=GPLR4ERZ8DWHGVA.
Harvard: U.S. Supreme Court, 'Syllabus' in Helvering v. Kehoe, 309 U.S. 277 (1940). cited in 1940, 309 U.S. 277, pp.309 U.S. 278. Original Sources, retrieved 19 April 2025, from http://originalsources.com/Document.aspx?DocID=GPLR4ERZ8DWHGVA.