Chicago bibliography example: Letter in a published collection. The author of the letter/collection is listed by last name first. Mitford, Jessica. The title of the collection is Decca: The Letters of Jessica Mitford. The title of the collection is italicized. The words Edited by is followed by the the editor of the collection. Peter Y. Sussman. The place of publication is New York followed by a colon. The publisher is Knopf followed by a comma. The date is 2006.