Conserving natural value.
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | Saesneg |
| Cyhoeddwyd: |
New York :
columbia university press,
|
| Pynciau: | |
| Classic Catalogue: | View this record in Classic Catalogue |
| Disgrifiad Corfforoll: | 259 pages. |
|---|---|
| ISBN: | 023107901x |