Locker Kitty O. (2006). Business and admnistrative communication (7th.ed.-.). McGraw- Hill.
Citazione stile Chigago Style (17a edizione)Locker Kitty O. Business and Admnistrative Communication. 7th.ed.-. Boston: McGraw- Hill, 2006.
Citatione MLA (9a ed.)Locker Kitty O. Business and Admnistrative Communication. 7th.ed.-. McGraw- Hill, 2006.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.