Warnecke, D., & Achenbach, D. (2008). 100 years Carl toys: History and products ; a German success story / Dieter Warnecke. Realized by Dieter Achenbach (1. Aufl.). Kerschensteiner.
Cita Chicago (17th ed.)Warnecke, Dieter, i Dieter Achenbach. 100 Years Carl Toys: History and Products ; a German Success Story / Dieter Warnecke. Realized by Dieter Achenbach. 1. Aufl. Lappersdorf: Kerschensteiner, 2008.
Cita MLA (8th ed.)Warnecke, Dieter, i Dieter Achenbach. 100 Years Carl Toys: History and Products ; a German Success Story / Dieter Warnecke. Realized by Dieter Achenbach. 1. Aufl. Kerschensteiner, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.