MLA

Parker, Peter, 1804-1888. Authorization for Parker Parker to draw his salary as Commissioner to China (duplicate). 1, folder 10. 1855 September 5. https://collections.library.yale.edu/catalog/16808596.

APA, 6th edition

Parker, Peter, 1804-1888. (["1, folder 10"])(1855 September 5)[Authorization for Parker Parker to draw his salary as Commissioner to China (duplicate)]. https://collections.library.yale.edu/catalog/16808596.