http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
its history and its operation : with especial attention to the time of Pope Innocent III, 1198-1216
Also published as thesis (Ph. D.)--University of Chicago, 1906.
Includes bibliographical references (pages 164-173) and index.
Prize essays of the American Historical Association ; 1907