APA (7th ed.) Citation

(2005). Perspectives on variation: Sociolinguistic, historical, comparative. de Gruyter.

Chicago Style (17th ed.) Citation

Perspectives on Variation: Sociolinguistic, Historical, Comparative. Berlin [u.a.]: de Gruyter, 2005.

MLA (9th ed.) Citation

Perspectives on Variation: Sociolinguistic, Historical, Comparative. de Gruyter, 2005.

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