APA (7th ed.) Citation

Ballard, W., Wallace, J., & Boal, T. E. Letter from the Editor. Wiley.

Chicago Style (17th ed.) Citation

Ballard, Warren, Janet Wallace, and Tracy Estabrook Boal. Letter from the Editor. Wiley.

MLA (9th ed.) Citation

Ballard, Warren, et al. Letter from the Editor. Wiley.