Chicago
Memorandum
https://www.govinfo.gov/app/details/USREPORTS-66/USREPORTS-66-FrontMatter.
APA
Memorandum
https://www.govinfo.gov/app/details/USREPORTS-66/USREPORTS-66-FrontMatter.
MLA
Memorandum.
https://www.govinfo.gov/app/details/USREPORTS-66/USREPORTS-66-FrontMatter.
Bluebook
Memorandum.