APA (7th ed.) Citation

Giddings, J. R., Barton, W. E., & William E. Barton Collection of Lincolniana. (1860). Letter: N.p., to Salmon P. Chase, n.p.

Chicago Style (17th ed.) Citation

Giddings, Joshua R., William E. Barton, and William E. Barton Collection of Lincolniana. Letter: N.p., to Salmon P. Chase, N.p. 1860.

MLA (8th ed.) Citation

Giddings, Joshua R., et al. Letter: N.p., to Salmon P. Chase, N.p. 1860.