Dyfyniad APA
Thill, J. V., & Bov�ee, C. L. (1996). Excellence: In business communication (3rd ed.). McGraw-Hill.
Dyfyniad Arddull Chicago
Thill, John V., and Courtland L. Bov�ee. Excellence: In Business Communication. 3rd ed. New York : New Delhi: McGraw-Hill, 1996.
Dyfyniad MLA
Thill, John V., and Courtland L. Bov�ee. Excellence: In Business Communication. 3rd ed. McGraw-Hill, 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.