APA-viite (7. p.)

Friend, C. E., Knight, L. D., & Glazier, T. F. (2012). The least you should know about vocabulary building: Word roots (Seventh edition, International edition.). Wadsworth Cengage Learning.

Chicago-viite (17. p.)

Friend, Carol E., Laura D. Knight, ja Teresa Ferster Glazier. The Least You Should Know About Vocabulary Building: Word Roots. Seventh edition, International edition. Australia: Wadsworth Cengage Learning, 2012.

MLA-viite (9. p.)

Friend, Carol E., et al. The Least You Should Know About Vocabulary Building: Word Roots. Seventh edition, International edition. Wadsworth Cengage Learning, 2012.