Parke, B., Johnson, O. F., & Purdon, J. (1837). Digest of the revised code & acts passed by the legislature between the 7th day of April, 1830, & the 16th day of June, 1836, forming, with Purdon's Digest of 1830, a complete digest of the laws of Pennsylvania to the present time. Philadelphia: James Kay, Jun. & Bros..

Parke, Benjamin, Ovid Fraser Johnson, and John Purdon. Digest of the Revised Code & Acts Passed By the Legislature between the 7th Day of April, 1830, & the 16th Day of June, 1836, Forming, With Purdon's Digest of 1830, a Complete Digest of the Laws of Pennsylvania to the Present Time. Philadelphia: James Kay, Jun. & Bros., 1837.

Parke, Benjamin, Ovid Fraser Johnson, and John Purdon. Digest of the Revised Code & Acts Passed By the Legislature between the 7th Day of April, 1830, & the 16th Day of June, 1836, Forming, With Purdon's Digest of 1830, a Complete Digest of the Laws of Pennsylvania to the Present Time. Philadelphia: James Kay, Jun. & Bros., 1837.