Παραπομπή σε μορφή APA (7η εκδ.)

Doff, A., Jones, C. J., & Mitchell, K. Meanings into words Intermediate. Student's book (10a ed.).

Παραπομπή σε μορφή Chicago (17η εκδ.)

Doff, Adrian, Christopher J. Jones, και Keith Mitchell. Meanings into Words Intermediate. Student's Book. 10a ed.

Παραπομπή σε μορφή MLA (8th εκδ.)

Doff, Adrian, et al. Meanings into Words Intermediate. Student's Book. 10a ed.