APA (7th ed.) Citation

Beets, J. T., Jay, F. W., & Frank Webster Jay Collection. (1832). Autograph letter signed: N.p., to A[driaan] van der Willigen, n.p.

Chicago Style (17th ed.) Citation

Beets, J. T., Frank Webster Jay, and Frank Webster Jay Collection. Autograph Letter Signed: N.p., to A[driaan] Van Der Willigen, N.p. 1832.

MLA (8th ed.) Citation

Beets, J. T., et al. Autograph Letter Signed: N.p., to A[driaan] Van Der Willigen, N.p. 1832.