1. Brown, J. K., Handbook for Predicting Slash Weight of Western Conifers: 17 (1977).
2. Forestry Handbook 1955
3. MURPHY, J.L., RESEARCH LOOKS AT AIR QUALITY AND FOREST BURNING, JOURNAL OF FORESTRY 68: 530 (1970).
4. Ward D. E. paper presented at the 69th annual meeting of the Air Pollution Control Association Portland Ore. (1976).
5. Whittaker, R. H., Carbon and the Biosphere: 283 (1973).