APA-referens (7:e uppl.)

Doff, A., Jones, C. J., & Mitchell, K. Meanings into words: Intermediate. Workbook.

Chicago-referens (17:e uppl.)

Doff, Adrian, Christopher J. Jones, och Keith Mitchell. Meanings into Words: Intermediate. Workbook.

MLA-referens (8:e uppl.)

Doff, Adrian, et al. Meanings into Words: Intermediate. Workbook.