Control techniques for particulate air pollutants. - Washington 1969. - 1 v. (various pagings) illus. 26 cm. - Its Publication . - National Air Pollution Control Administration publication no. AP-51. .

Includes bibliographies.

70601522 //r89


Gases--Cleaning.
Air Pollution--prevention & control
Air--Pollution.

TD 881 / .U56 C7

628/.53/2