Dyfyniad APA

Locker, K. O. (1997). Business and administrative communication (4th ed.). Irwin McGraw Hill.

Dyfyniad Arddull Chicago

Locker, Kitty O. Business and Administrative Communication. 4th ed. Boston: Irwin McGraw Hill, 1997.

Dyfyniad MLA

Locker, Kitty O. Business and Administrative Communication. 4th ed. Irwin McGraw Hill, 1997.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.