Twichell, Joseph H., 70 autograph letters signed to Twichell, Elmira, N.Y., Redding, Conn., including a few undated letters and fragments, letters of 1893 November 20 and 1901 April 24 are represented by typed copies only
MLA
Clemens, Samuel Langhorne, 1835-1910. Twichell, Joseph H., 70 autograph letters signed to Twichell, Elmira, N.Y., Redding, Conn., including a few undated letters and fragments, letters of 1893 November 20 and 1901 April 24 are represented by typed copies only. Box 2. 1868-1909. https://collections.library.yale.edu/catalog/17218188.
APA, 6th edition
Clemens, Samuel Langhorne, 1835-1910. (["Box 2"])(1868-1909)[Twichell, Joseph H., 70 autograph letters signed to Twichell, Elmira, N.Y., Redding, Conn., including a few undated letters and fragments, letters of 1893 November 20 and 1901 April 24 are represented by typed copies only]. https://collections.library.yale.edu/catalog/17218188.
