Dyfyniad APA

Biswal, D., & Rao,J.K. (1980). Commercial correspondence (3rd rev. ed.). Kalyani.

Dyfyniad Arddull Chicago

Biswal, D., and Rao,J.K. Commercial Correspondence. 3rd rev. ed. Ludhiana: Kalyani, 1980.

Dyfyniad MLA

Biswal, D., and Rao,J.K. Commercial Correspondence. 3rd rev. ed. Kalyani, 1980.

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