Butterfield, J. W., Mitchell, R. J., & Kern, J. Q. (1869). Digest of decisions of the Second Comptroller of the Treasury. G.P.O..

Butterfield, John W., Robert J. Mitchell, and Josiah Quincy Kern. Digest of Decisions of the Second Comptroller of the Treasury. Washington: G.P.O., 1869.

Butterfield, John W., et al. Digest of Decisions of the Second Comptroller of the Treasury. G.P.O., 1869.