9/28/78
MLA
United States. Office of the White House Staff Secretary. "9/28/78." Jimmy Carter Library. 1978-09-28, https://www.jimmycarterlibrary.gov/digital_library/sso/148878/92/SSO_148878_092_11.pdf.
APA
United States. Office of the White House Staff Secretary (1978-09-28). 9/28/78. Retrieved from https://www.jimmycarterlibrary.gov/digital_library/sso/148878/92/SSO_148878_092_11.pdf
Chicago
United States. Office of the White House Staff Secretary. "9/28/78." 1978-09-28. July 9, 2025. https://www.jimmycarterlibrary.gov/digital_library/sso/148878/92/SSO_148878_092_11.pdf.