APA (7th ed.) Citation

Grimes, B. F. (1992). Ethnologue: Languages of the world (12. Aufl.). Summer Inst. of Linguistics.

Chicago Style (17th ed.) Citation

Grimes, Barbara F. Ethnologue: Languages of the World. 12. Aufl. Dallas: Summer Inst. of Linguistics, 1992.

MLA (9th ed.) Citation

Grimes, Barbara F. Ethnologue: Languages of the World. 12. Aufl. Summer Inst. of Linguistics, 1992.

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