TY  - BOOK
AU  - Loman, A.A.
AU  - Blauel, R.A.; Hocking, D.
TI  - Sulfur dioxide and forest vegetation
U1  - P 634.9 21st ed.
PY  - 1972///
CY  - Canada
PB  - Canadian Forestry Service
KW  - Forestry
KW  - Forests
KW  - Pollution
KW  - Sulfar dioxide
KW  - Forest Vegetation
KW  - Green plant
N1  - Bibliography: pp 18-22
ER  -