Cita APA (7a ed.)

Locker Kitty O. (2006). Business and admnistrative communication (7th.ed.-.). McGraw- Hill.

Cita Chicago Style (17a ed.)

Locker Kitty O. Business and Admnistrative Communication. 7th.ed.-. Boston: McGraw- Hill, 2006.

Cita MLA (9a ed.)

Locker Kitty O. Business and Admnistrative Communication. 7th.ed.-. McGraw- Hill, 2006.