Dyfyniad APA

Kohker, H. (1993). Statistics for business and economics. NY: HarperCollins College.

Dyfyniad Arddull Chicago

Kohker, Heinz. Statistics for Business and Economics. NY: HarperCollins College, 1993.

Dyfyniad MLA

Kohker, Heinz. Statistics for Business and Economics. NY: HarperCollins College, 1993.

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