Dyfyniad APA

(1992). International Business / Betty Jane Punnet, David A. Ricks. PWS-Kent.

Dyfyniad Arddull Chicago

International Business / Betty Jane Punnet, David A. Ricks. PWS-Kent, 1992.

Dyfyniad MLA

International Business / Betty Jane Punnet, David A. Ricks. PWS-Kent, 1992.

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