"London Letters," typescript and autograph ms.
MLA
Thayer, Scofield, 1889-1982. "London Letters," typescript and autograph ms.. Box 20, folder 401-403. 1921-22 Aug,Nov. https://collections.library.yale.edu/catalog/17142291.
APA, 6th edition
Thayer, Scofield, 1889-1982. (["Box 20, folder 401-403"])(1921-22 Aug,Nov)["London Letters," typescript and autograph ms.]. https://collections.library.yale.edu/catalog/17142291.