Dyfyniad APA

(2011).  Introduction to electronic commerce.  Pearson/Prentice Hall.

Dyfyniad Arddull Chicago

 Introduction to Electronic Commerce.  Pearson/Prentice Hall, 2011.

Dyfyniad MLA

 Introduction to Electronic Commerce.  Pearson/Prentice Hall, 2011.

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