1.
[Hong Kong, China] : [China Patents & Trademarks Publications], 1999.
English | F 634(254) CN 7 |
2.
[Place of publication not identified] : [publisher not identified], 1999.
English | 1 HK |
3.
[Hong Kong, China] : [China Patents & Trademarks Publications], 1999.
English | F 44 CN 7 |
4.
[Hong Kong, China] : [China Patents & Trademarks Publications], 1999.
English | 7 CN |