Chicago
Index to Volume 540 https://www.govinfo.gov/app/details/USREPORTS-540/USREPORTS-540-BackMatter-3.
APA
Index to Volume 540 https://www.govinfo.gov/app/details/USREPORTS-540/USREPORTS-540-BackMatter-3.
MLA
Index to Volume 540. https://www.govinfo.gov/app/details/USREPORTS-540/USREPORTS-540-BackMatter-3.
Bluebook
Index to Volume 540.