6/21/78
MLA
United States. Office of the White House Staff Secretary. "6/21/78." Jimmy Carter Library. 1978-06-21, https://www.jimmycarterlibrary.gov/digital_library/sso/148878/82/SSO_148878_082_05.pdf.
APA
United States. Office of the White House Staff Secretary (1978-06-21). 6/21/78. Retrieved from https://www.jimmycarterlibrary.gov/digital_library/sso/148878/82/SSO_148878_082_05.pdf
Chicago
United States. Office of the White House Staff Secretary. "6/21/78." 1978-06-21. July 12, 2025. https://www.jimmycarterlibrary.gov/digital_library/sso/148878/82/SSO_148878_082_05.pdf.
