Dyfyniad APA

Ernest, J. W. (1973). Salesmanship fundamentals. business book limited.

Dyfyniad Arddull Chicago

Ernest, John W. Salesmanship Fundamentals. London: business book limited, 1973.

Dyfyniad MLA

Ernest, John W. Salesmanship Fundamentals. business book limited, 1973.

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