Improved techniques for the extraction of primary forms of energy : a seminar of the United Nations Economic Commission for Europe (Vienna 10-14 November 1980).
Wedi'i Gadw mewn:
| Awdur Corfforaethol: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
London :
Published in co-operation with the United Nations by Graham & Trotman Ltd,
1983.
|
| Pynciau: |
| Disgrifiad Corfforoll: | vii, 194 p. : ill. ; 31 cm. |
|---|---|
| Llyfryddiaeth: | Includes bibliographical references. |
| ISBN: | 0860104397 : |