APA (7th ed.) Zitazioa
Bennett, R. (1988). Improving trainer effectiveness. Gower.
Chicago Style (17th ed.) Zitazioa
Bennett, Roger. Improving Trainer Effectiveness. Aldershot, Hants, England ; Brookfield, Vt., USA: Gower, 1988.
MLA (9th ed.) Zitazioa
Bennett, Roger. Improving Trainer Effectiveness. Gower, 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.