1.
|
Freiburg : HochschulVerlag, c1988.
German | P 23 GOE.H |
|
2.
|
München : C.H. Beck, 1984. Second edition.
German | N 634 HAR.H |
|
3.
|
Groningen [The Netherlands] : Europa Law Pub., 2010.
English | T 12 HER.E |
|
4.
|
New York : Schirmer Trade Books, c2010. Second edition.
|
5.
|
London : Routledge, 1996.
English | N 628 ALB.M |
|