http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Faber in association with The Philip H. & A.S.W. Rosenbach Foundation
V.1, A facsimile of the manuscript. V.2, A facsimile of the manuscript (Cont.). V.3, The manuscript and first printings compared.
With a critical introd. by H.Levin, and a bibliographical preface by C.Driver.