Ingalls, David S.
MLA
Davison, Frederick Trubee, 1896-1974. Ingalls, David S.. Box 15, folder 223. 1918-1924; 1968. https://collections.library.yale.edu/catalog/10021671.
APA, 6th edition
Davison, Frederick Trubee, 1896-1974. (["Box 15, folder 223"])(1918-1924; 1968)[Ingalls, David S.]. https://collections.library.yale.edu/catalog/10021671.