2/20/78
MLA
United States. Office of the White House Staff Secretary. "2/20/78." Jimmy Carter Library. 1978-02-20, https://www.jimmycarterlibrary.gov/digital_library/sso/148878/63/SSO_148878_063_11.pdf.
APA
United States. Office of the White House Staff Secretary (1978-02-20). 2/20/78. Retrieved from https://www.jimmycarterlibrary.gov/digital_library/sso/148878/63/SSO_148878_063_11.pdf
Chicago
United States. Office of the White House Staff Secretary. "2/20/78." 1978-02-20. July 12, 2025. https://www.jimmycarterlibrary.gov/digital_library/sso/148878/63/SSO_148878_063_11.pdf.