Dyfyniad APA

Friedman, W. A. (2004). Birth of a salesman: The transformation of selling in America. Harvard University Press.

Dyfyniad Arddull Chicago

Friedman, Walter A. Birth of a Salesman: The Transformation of Selling in America. Cambridge, MA: Harvard University Press, 2004.

Dyfyniad MLA

Friedman, Walter A. Birth of a Salesman: The Transformation of Selling in America. Harvard University Press, 2004.

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