ABELLA KAY TYTLER. (1986). BUILDING SUCCESSFUL TRAINING PROGRAMMES: A STEP BY STEP GUIDE. ADDISON-WESLEY.
Chicago Style aipamenaABELLA KAY TYTLER. BUILDING SUCCESSFUL TRAINING PROGRAMMES: A STEP BY STEP GUIDE. CALIFORNIA: ADDISON-WESLEY, 1986.
MLA aipamenaABELLA KAY TYTLER. BUILDING SUCCESSFUL TRAINING PROGRAMMES: A STEP BY STEP GUIDE. ADDISON-WESLEY, 1986.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.