http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
τ. 1. Porphyry on the life of Plotinus and the order of his books. Enneads I. -- τ. 2. Enneads II. -- τ. 3. Enneads III. -- τ. 4. Enneads IV. -- τ. 5. Enneads V. -- τ. 6. Enneads VI, 1-5. -- τ. 7. Enneads VI. 6-9.
with an english translation by A.H. Armstrong.