MLA

Slater, Nelson. Nelson Slater and Henrietta Slater McIntire Papers, Ca. 1820-1923. 0AD. https://collections.library.yale.edu/catalog/2029059.

APA, 6th edition

Slater, N. (0 C.E.). Nelson Slater and Henrietta Slater McIntire papers, ca. 1820-1923 [Account books California Sacramento 19th century, Diaries California Sacramento 19th century, Diplomas, Photographs, Tintypes (prints), Booksellers' labels (Provenance) T. Bithell]. https://collections.library.yale.edu/catalog/2029059.