APA (7th ed.) Citation

Doff, A., Jones, C. J., & Mitchell, K. Meanings into words. Intermediate. An integrated course for students of English. Test book.

Chicago Style (17th ed.) Citation

Doff, Adrian, Christopher J. Jones, and Keith Mitchell. Meanings into Words. Intermediate. An Integrated Course for Students of English. Test Book.

MLA (8th ed.) Citation

Doff, Adrian, et al. Meanings into Words. Intermediate. An Integrated Course for Students of English. Test Book.