Tohutoro APA (7th ed.)
Kuwayama, J. (1977). Zeichen, Marken und Signets: Trademarks and symbols. Callwey.
Tohutoru Kātū Chicago (17th ed.)
Kuwayama, Jasaburo. Zeichen, Marken Und Signets: Trademarks and Symbols. München: Callwey, 1977.
Tohutoro MLA (9th ed.)
Kuwayama, Jasaburo. Zeichen, Marken Und Signets: Trademarks and Symbols. Callwey, 1977.
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