Environmental specific rates and biases of technical change in agriculture
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
[S.l.
s.n.
1991]
|
| Cyfres: | APEX working paper
no.4 |
| Pynciau: |
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
[S.l.
s.n.
1991]
|
| Cyfres: | APEX working paper
no.4 |
| Pynciau: |