Dyfyniad APA

Slee ,Smith, P. I. (1967). Industrial public relaitons. Business publication limited.

Dyfyniad Arddull Chicago

Slee ,Smith, Paul I. Industrial Public Relaitons. London: Business publication limited, 1967.

Dyfyniad MLA

Slee ,Smith, Paul I. Industrial Public Relaitons. Business publication limited, 1967.

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