APA (7th ed.) Citation

Idea e.V. (2005). Idea-Spektrum. IDEA-Spektrum.

Chicago Style (17th ed.) Citation

Idea e.V. "Idea-Spektrum." IDEA-Spektrum 2005.

MLA (8th ed.) Citation

Idea e.V. "Idea-Spektrum." IDEA-Spektrum, 2005.

Warning: These citations may not always be 100% accurate.