APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (8. p.)

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