Theodore Dominic Pallman and William Fletcher Penn, from the 1897 edition of Symptom Record, the medical school class book.
MLA
Theodore Dominic Pallman and William Fletcher Penn, from the 1897 Edition of Symptom Record, the Medical School Class Book. 1896. https://collections.library.yale.edu/catalog/10014823.
APA, 6th edition
Theodore Dominic Pallman and William Fletcher Penn, from the 1897 edition of Symptom Record, the medical school class book. (1896). [Books (part of)]. https://collections.library.yale.edu/catalog/10014823.