1.
2.
New York, New York : International Trademark Association, 1971.
German | 64 US |
3.
New York, New York : International Trademark Association, 1993.
English | 64 US |
4.
New York, New York : International Trademark Association, 1971.
English | 64 US |
5.
New York, New York : International Trademark Association, 1975.
English | 64 US |
6.
Seoul, Korea : Asia-Pacific Lawyers Association, 1981.
English | 5 US |