Webster, D. (1848). Mr. Webster's speech at Marshfield, Mass., delivered September 1, 1848: And his speech on the Oregon bill, delivered in the United States Senate, August 12, 1848. Boston: Press of T.R. Marvin.

Webster, Daniel. Mr. Webster's Speech At Marshfield, Mass., Delivered September 1, 1848: And His Speech On the Oregon Bill, Delivered in the United States Senate, August 12, 1848. Boston: Press of T.R. Marvin, 1848.

Webster, Daniel. Mr. Webster's Speech At Marshfield, Mass., Delivered September 1, 1848: And His Speech On the Oregon Bill, Delivered in the United States Senate, August 12, 1848. Boston: Press of T.R. Marvin, 1848.