Cite

ALS to the British Archaeological Association

MLA

Pettigrew, Thomas Joseph, 1791-1865. ALS to the British Archaeological Association. Box 9, folder 426. 1854 Nov 23. https://collections.library.yale.edu/catalog/16684174.

APA, 6th edition

Pettigrew, Thomas Joseph, 1791-1865. (["Box 9, folder 426"])(1854 Nov 23)[ALS to the British Archaeological Association]. https://collections.library.yale.edu/catalog/16684174.