1.
Vienna [Austria] : Hans Collin, 1992.
English | G 173 COL.I | Available |
2.
[St. Paul, Minn.] : Thomson/West, c2002-
Fourth edition.
English | G 870 PAT | Available |
3.
London : Sweet & Maxwell, 1999.
Third edition.
English | G 870 REI.P | Available |
4.