APA (7th ed.) Citation

Drude, S., Dürr, M., & Masson, P. (2005). Indianersprachen [Encyclopedia entry].

Chicago Style (17th ed.) Citation

Drude, S., M. Dürr, and P. Masson. Indianersprachen [Encyclopedia Entry]. 2005.

MLA (8th ed.) Citation

Drude, S., et al. Indianersprachen [Encyclopedia Entry]. 2005.