http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
11 volumes : illustrations, portraits, facsimiles ; 24 cm.
edited by Piero Sraffa, with the collaboration of M. H. Dobb.
Volume 1. On the principles of political economy and taxation.--volume 2. Notes on Malthus's Principles of political economy.--volume 3. Pamphlets and papers, 1809-1811.--volume 4. Pamphlets and papers, 1815-1823.--volume 5. Speeches and evidence.--volume 6 Letters, 1810-1815.--volume 7. Letters, 1816-1818.--volume 8. Letters, 1819-June 1821.--volume 9. Letters, July 1821-1823.--volume 10. Biographical miscellany.--volume 11. General index.