MLA

Yale Peruvian Expedition ($d: 1911). Miscellaneous. Box 34, folder 46. 1911-1923. https://collections.library.yale.edu/catalog/33347206.

APA, 6th edition

Yale Peruvian Expedition ($d: 1911). (["Box 34, folder 46"])(1911-1923)[Miscellaneous]. https://collections.library.yale.edu/catalog/33347206.