MLA

Asakawa, Kan'ichi, 1873-1948. 1907-1929. Box 2, folder 15 - 26 | reel 1U | reel 2U. 1895-1955. https://collections.library.yale.edu/catalog/32485267.

APA, 6th edition

Asakawa, Kan'ichi, 1873-1948. (["Box 2, folder 15 - 26 | reel 1U | reel 2U"])(1895-1955)[1907-1929]. https://collections.library.yale.edu/catalog/32485267.