Principles and types of speech communication
| Awduron Eraill: | |
|---|---|
| Fformat: | Llyfr | 
| Iaith: | English | 
| Cyhoeddwyd: | New York
          HarperCollins College Publishers
    
        c1994. | 
| Rhifyn: | 12th ed. | 
| Pynciau: | 
| Awduron Eraill: | |
|---|---|
| Fformat: | Llyfr | 
| Iaith: | English | 
| Cyhoeddwyd: | New York
          HarperCollins College Publishers
    
        c1994. | 
| Rhifyn: | 12th ed. | 
| Pynciau: |