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New York, New York : International Trademark Association, 1977.
English | M 341(413) US 64 |
3.
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7.
[Place of publication not identified] : [publisher not identified], 1991.
Portuguese | P 1423 UNESCO 3C |
8.
[Place of publication not identified] : [publisher not identified], 1991.
French | P 1423 UNESCO 3C |
9.
[Place of publication not identified] : [publisher not identified], 1991.
Spanish | P 1423 UNESCO 3C |