APA (7th ed.) Citation

Narrog, H., & Heine, B. (2021). Grammaticalization. Oxford University Press.

Chicago Style (17th ed.) Citation

Narrog, Heiko, and Bernd Heine. Grammaticalization. Oxford: Oxford University Press, 2021.

MLA (8th ed.) Citation

Narrog, Heiko, and Bernd Heine. Grammaticalization. Oxford University Press, 2021.

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