Abstract |
The twice per year cumulative index to both subject and author covers the following numbered abstracts in each bulletin: 25049 - 25573 in Vol. 4, No. 1, January 1973; 25574 - 25767 in Vol. 4, No. 2, February 1973; 25768 - 26243 in Vol. 4, No. 3, March 1973; 26244 - 26766 in Vol. 4, No. 4, April 1973; 26767 - 27293 in Vol. 4, No. 5, May 1973; 27294 - 28159 in Vol. 4, No. 6, June 1973. In the author index, first authors are differentiated from other authors by an asterisk preceding the number of the abstract of their article. The monthly issues of 'Air Pollution Abstracts' were published to inform air pollution personnel of the U.S. Environmental Protection Agency (EPA), and others, of technical literature recently accessioned by the Air Pollution Technical Information Center (APTIC). |