World tour
MLA
Matthias, Blanche (1887-1983). World tour. Box 8, folder 165-66a. 1919-20. https://collections.library.yale.edu/catalog/16865779.
APA, 6th edition
Matthias, Blanche (1887-1983). (["Box 8, folder 165-66a"])(1919-20)[World tour]. https://collections.library.yale.edu/catalog/16865779.