Ocean yearbook 4.
| Awduron Eraill: | , | 
|---|---|
| Fformat: | Llyfr | 
| Iaith: | English | 
| Cyhoeddwyd: | Chicago
          University of Chicago Press
    
        c1978 | 
| Rhifyn: | edited by Elisabeth Mann Borgese and Norton Ginsburg. | 
| Pynciau: | 
| Awduron Eraill: | , | 
|---|---|
| Fformat: | Llyfr | 
| Iaith: | English | 
| Cyhoeddwyd: | Chicago
          University of Chicago Press
    
        c1978 | 
| Rhifyn: | edited by Elisabeth Mann Borgese and Norton Ginsburg. | 
| Pynciau: |