1.
[Place of publication not identified] : [publisher not identified], 1980.
English | K 810 DAW.T |
2.
[Hong Kong, China] : [China Patents & Trademarks Publications], 1999.
English | 7 CN |
3.
4.
[Hong Kong, China] : [China Patents & Trademarks Publications], 1996.
English | 7 CN |