APA (7th ed.) Citation

Howard-Williams, D., Tomalin, M., & Watcyn-Jones, P. Instant lessons 1. Elementary.

Chicago Style (17th ed.) Citation

Howard-Williams, Deirdre, Mary Tomalin, and Peter Watcyn-Jones. Instant Lessons 1. Elementary.

MLA (8th ed.) Citation

Howard-Williams, Deirdre, et al. Instant Lessons 1. Elementary.