MLA

Yale Peruvian Expedition ($d: 1911). Notebook: archaeology, zoology, botany. Box 21, folder 38. 1914-1915. https://collections.library.yale.edu/catalog/33216751.

APA, 6th edition

Yale Peruvian Expedition ($d: 1911). (["Box 21, folder 38"])(1914-1915)[Notebook: archaeology, zoology, botany]. https://collections.library.yale.edu/catalog/33216751.