KALA, A. 2006. From Distinctive Signs to the Trademarks (1871-) . Türk Patent Enstitüsü, Ankara.

KALA, A., (2006). From Distinctive Signs to the Trademarks (1871-) . Ankara: Türk Patent Enstitüsü.

KALA, Ahmet. From Distinctive Signs to the Trademarks (1871-) . Ankara: Türk Patent Enstitüsü, 2006

KALA, Ahmet. From Distinctive Signs to the Trademarks (1871-) . Türk Patent Enstitüsü, 2006.

KALA, A. (2006) From Distinctive Signs to the Trademarks (1871-) . 2nd edn. Ankara: Türk Patent Enstitüsü.

@book{book, author={Ahmet KALA}, title={From Distinctive Signs to the Trademarks (1871-)}, publisher={Türk Patent Enstitüsü}, year={2006} }