@article {32745,
	title = {Symptomology and threshold levels of air pollutant injury to vegetation, 1979-80},
	volume = {AOSERP Report 109},
	year = {1980},
	note = {Project LS 3.1},
	pages = {17},
	institution = {Alberta Oil Sands Environmental Research Program},
	address = {Edmonton, AB},
	author = {Malhotra, S. S. and Addison, P. A. and Khan, A. A.}
}
