"Conductor Score"
MLA
Barrie, J. M. (James Matthew), 1860-1937. "Conductor Score". Box 43, folder 931. circa 1910. https://collections.library.yale.edu/catalog/32314450.
APA, 6th edition
Barrie, J. M. (James Matthew), 1860-1937. (["Box 43, folder 931"])(circa 1910)["Conductor Score"]. https://collections.library.yale.edu/catalog/32314450.