Chicago
Memorandum https://www.govinfo.gov/app/details/USREPORTS-20/USREPORTS-20-FrontMatter-4.
APA
Memorandum https://www.govinfo.gov/app/details/USREPORTS-20/USREPORTS-20-FrontMatter-4.
MLA
Memorandum. https://www.govinfo.gov/app/details/USREPORTS-20/USREPORTS-20-FrontMatter-4.
Bluebook
Memorandum.