APA (7th ed.) Citation

Kachru, B. B., Kachru, Y., & Nelson, C. L. The handbook of world Englishes. https://doi.org/10.1002/9780470757598

Chicago Style (17th ed.) Citation

Kachru, Braj B., Yamuna Kachru, and Cecil L. Nelson. The Handbook of World Englishes. https://doi.org/10.1002/9780470757598.

MLA (9th ed.) Citation

Kachru, Braj B., et al. The Handbook of World Englishes. https://doi.org/10.1002/9780470757598.