Obligations of Society in the XII and XIII Centuries. The Ford Lectures delivered in the University of Oxford in Michaelmas term 1944
Inbunden bok. Oxford at the Clarendon Press. 1960. (8)+115 sidor.
Gott skick. Publisher's cloth. Spine ends are slightly bumped. Owner's signature and a couple of pencil underlinings inside. Reprint, first issued in 1946.