1.
2.
3.
4.
Buffalo, New York : The Patent and Trademark Office Society, 1985.
English | 47 US |
5.
[Hong Kong, China] : [China Patents & Trademarks Publications], 1986.
English | 7 CN |
6.
7.
8.
9.
10.
East Kilbride [Scotland] : Licensing Executives Society International, 1993.
English | 48 US |