1.
|
[Place of publication not identified] : [publisher not identified], 1999.
English | 19 US |
|
2.
|
Köln : Heymanns, c2001.
German | G 412 SCHI.F |
|
3.
|
[Hong Kong, China] : [China Patents & Trademarks Publications], 1999.
English | 7 CN |
|
4.
|
[Place of publication not identified] : [publisher not identified], 1999.
English | 19 US |
|
5.
|
Köln : Heymanns, 1998.
German | G 412 BLU.F |
|