MLA

Vincent, George. Notes Made during a Journey Thro' Part of France, Switzerland [Notes and Ephemera, Folder 1 of 3]. 1822. https://collections.library.yale.edu/catalog/11253208.

APA, 6th edition

Vincent, G. (1822). Notes made during a journey thro' part of France, Switzerland [Notes and ephemera, folder 1 of 3] [Business cards (AAT), Ephemera, Notes, Receipts]. https://collections.library.yale.edu/catalog/11253208.