Knox, A. B. (1979). Assessing the impact of continuing education. Jossey-Bass.
Chicago Style (17th ed.) ZitazioaKnox, Alan B. Assessing the Impact of Continuing Education. San Francisco: Jossey-Bass, 1979.
MLA (9th ed.) ZitazioaKnox, Alan B. Assessing the Impact of Continuing Education. Jossey-Bass, 1979.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.