Dyfyniad APA

STEINMETZ LAWRENCE L. (2006). HOW TO SELL AT MARGINS HIGHER THAN YOUR COMPETITORS. JOHN WILEY & SONS.

Dyfyniad Arddull Chicago

STEINMETZ LAWRENCE L. HOW TO SELL AT MARGINS HIGHER THAN YOUR COMPETITORS. NEW JERSEY: JOHN WILEY & SONS, 2006.

Dyfyniad MLA

STEINMETZ LAWRENCE L. HOW TO SELL AT MARGINS HIGHER THAN YOUR COMPETITORS. JOHN WILEY & SONS, 2006.

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