http://pec.lib.wvu.edu/record/P20021918An Analysis of Ruffin's Farmers' Register, with a bibliography of Edmund Ruffin. Journal issue. Issued as: <em>Bulletin of the Virginia State Library</em>, v.11:no.3/4 (1918:July/Oct.). Swem, E. G. (Earl Gregg), 1870-1965.Farmers' register. Index.Ruffin, Edmund, 1794-1865--Bibliography.Agriculture--Virginia--Bibliography.14256