Lucas, R. W. (1994). How to develop effective communication skills. Jack Wilson and Associates.
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Dyfyniad Arddull Chicago
Lucas, Robert W. How to Develop Effective Communication Skills. Illonois, Chicago: Jack Wilson and Associates, 1994.
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Dyfyniad MLA
Lucas, Robert W. How to Develop Effective Communication Skills. Jack Wilson and Associates, 1994.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.