(1991). Training & development. American Society for Training and Development.
Citazione stile Chigago Style (17a edizione)Training & Development. Alexandria, VA: American Society for Training and Development, 1991.
Citatione MLA (9a ed.)Training & Development. American Society for Training and Development, 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.