Cite

Caleb Cushing, Macao, to Peter Parker

MLA

Parker, Peter, 1804-1888. Caleb Cushing, Macao, to Peter Parker. 1, folder 4. 1844 February 25. https://collections.library.yale.edu/catalog/16808535.

APA, 6th edition

Parker, Peter, 1804-1888. (["1, folder 4"])(1844 February 25)[Caleb Cushing, Macao, to Peter Parker]. https://collections.library.yale.edu/catalog/16808535.