APA (7th ed.) Citation

Riordan, R., & Haefs, G. (2014). Helden des Olymp (1. Aufl.). Carlsen.

Chicago Style (17th ed.) Citation

Riordan, Rick, and Gabriele Haefs. Helden Des Olymp. 1. Aufl. Hamburg: Carlsen, 2014.

MLA (9th ed.) Citation

Riordan, Rick, and Gabriele Haefs. Helden Des Olymp. 1. Aufl. Carlsen, 2014.

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