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Occupational exposure limits for airborne toxic substances a tabular compilation of values from selected countries 83143227.

Air pollution its origin and control por Wark, Kenneth

Industrial air pollution control

Water pollution microbiology por Mitchell, Ralph 1934-

Water pollution technology por Black, John A. 1938-

Population, resources, environment issues in human ecology por Ehrlich, Paul R.

Metal contamination in aquatic environments science and lateral management por Luoma, Samuel N.

Table of contents only

Ecotechnology and pollution control

Air pollution and its health effects in China a monograph. por WHO/UNEP Air Pollution Workshop (1993 : Beijing)

Air pollution control