Strategy of pollution control /

Air pollution control. Part 1,

Air pollution control. Part 2

Air pollution control. Part 3, Measuring and monitoring air pollutants /

Air pollution control technology /

Air Pollution Control Theory /

Microbiological aspects of pollution control /

Journal of the Water Pollution Control Federation.

Pollution. : Causes, Effects, and Control. /

Control techniques for sulfur oxide air pollutants.

Analytical measurements and instrumentation for process and pollution control /

Air Pollution : phytotoxicity of acidi gases and its significance in air pollution control /

A linear programming model for air pollution control /

Macroeconomic impacts of an EEC policy to control air pollution. /

Conversation /

Wetland systems in water pollution control. : Proceedings of the IAWO 3rd international specialist conference... /

Directory of pollution control equipment companies in the European Economic Community.

Review of pollution control technology for waste combustion : A report for the energy technology support unit.

Conversation lessons. The natural language of conversation Units 1-30

Polluted rain /

Pollution Control and Conversation /

Numerikus módszerek /