Cite

Journal (typewritten copy)

MLA

Yale Peruvian Expedition ($d: 1911). Journal (typewritten copy). Box 18, folder 10. 1911 June-September. https://collections.library.yale.edu/catalog/33346494.

APA, 6th edition

Yale Peruvian Expedition ($d: 1911). (["Box 18, folder 10"])(1911 June-September)[Journal (typewritten copy)]. https://collections.library.yale.edu/catalog/33346494.