APA (7th ed.) Citation

Enge, E., Spencer, S., Stricchiola, J., & Fishkin, R. (2012). Die Kunst des SEO (1st edition.). O'Reilly Verlag.

Chicago Style (17th ed.) Citation

Enge, Eric, Stephan Spencer, Jessie Stricchiola, and Rand Fishkin. Die Kunst Des SEO. 1st edition. O'Reilly Verlag, 2012.

MLA (9th ed.) Citation

Enge, Eric, et al. Die Kunst Des SEO. 1st edition. O'Reilly Verlag, 2012.