Kunsthandwerk & Design. Ritterbach.
Chicago Style (17. basım) AtıfKunsthandwerk & Design. Frechen: Ritterbach.
MLA (8th ed.) AtıfKunsthandwerk & Design. Ritterbach.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..
Kunsthandwerk & Design. Ritterbach.
Chicago Style (17. basım) AtıfKunsthandwerk & Design. Frechen: Ritterbach.
MLA (8th ed.) AtıfKunsthandwerk & Design. Ritterbach.