International directory of new and renewable energy information sources and research centres.
International directory of new and renewable energy information sources and research centres.
- 2a ed.
- París : UNESCO, 1986.
- 661 p.
9231022989
OC 061.2: 620.91 (100 )=20 "1986" INT.
9231022989
OC 061.2: 620.91 (100 )=20 "1986" INT.