APA (7th ed.) Citation

Doff, A., Jones, C. J., & Mitchell, K. Meanings into words. Upper-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. Upper-Intermediate. An Integrated Course for Students of English. Test Book.

MLA (8th ed.) Citation

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