5/21/79 [3]
MLA
United States. Office of the White House Staff Secretary. "5/21/79 [3]." Jimmy Carter Library. 1979-05-21, https://www.jimmycarterlibrary.gov/digital_library/sso/148878/118/SSO_148878_118_03.pdf.
APA
United States. Office of the White House Staff Secretary (1979-05-21). 5/21/79 [3]. Retrieved from https://www.jimmycarterlibrary.gov/digital_library/sso/148878/118/SSO_148878_118_03.pdf
Chicago
United States. Office of the White House Staff Secretary. "5/21/79 [3]." 1979-05-21. June 21, 2025. https://www.jimmycarterlibrary.gov/digital_library/sso/148878/118/SSO_148878_118_03.pdf.