Standards of effluents to rivers with particular reference to industrial effluents.
Wedi'i Gadw mewn:
| Awdur Corfforaethol: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
London, :
H.M.S.O.,
1968.
|
| Pynciau: |
| Disgrifiad Corfforoll: | [1], 21 p. ; 25 cm. |
|---|