"Residence No. 40 (foundations) East Site, Rev. Richard H. Ritter"
MLA
"Residence No. 40 (Foundations) East Site, Rev. Richard H. Ritter". 0AD. https://collections.library.yale.edu/catalog/17266031.
APA, 6th edition
"Residence No. 40 (foundations) East Site, Rev. Richard H. Ritter". (0 C.E.). [Photographs (AAT)]. https://collections.library.yale.edu/catalog/17266031.