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- [3] THE AIR-POLLUTION CONTROL MARKET IN THE 1990S JAPCA-THE INTERNATIONAL JOURNAL OF AIR POLLUTION CONTROL AND HAZARDOUS WASTE MANAGEMENT, 1988, 38 (03): : 248 - 251
- [6] The air pollution control market in the 1990s Journal of the Air Pollution Control Association, 1988, 38 (03): : 248 - 251