TY - GEN AU - Wells,Jeremy AU - Sutcliffe,Leni G. ED - International Trade Centre UNCTAD/WTO TI - Environmental engineering and support services: a handbook for exporters from developing countries T2 - Product and market development SN - 9291370673 AV - HD9718.D44 W45 1997 PY - 1997/// CY - Geneva PB - International Trade Centre UNCTAD/WTO KW - Pollution control industry KW - Developing countries KW - Environmental engineering KW - Marketing KW - Export marketing KW - Foreign trade promotion ER -