APA (7th ed.) Citation

Royar, T. Intelligente Sachaufgaben. AOL.

Chicago Style (17th ed.) Citation

Royar, Thomas. Intelligente Sachaufgaben. Lichtenau: AOL.

MLA (9th ed.) Citation

Royar, Thomas. Intelligente Sachaufgaben. AOL.

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