The ecology of agricultural systems
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Cambridge [Cambridgeshire], New York
Cambridge University Press
1982.
|
| Cyfres: | Cambridge topics in geography. nSecond series
|
| Pynciau: |