http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Published also as thesis (Ph. D.) Johns Hopkins university, 1914.
Microfiche (positive). Louisville, Ky., Lost Cause Press, 1972. 4 sheets. 11 x 15 cm. ([Slavery, source material and critical literature])
Johns Hopkins University studies in historical and political science ; ser. 32, no. 2
Slavery, source material and critical literature