Bjorkman, E. The effect of fertilization on sulphur dioxide damage to conifers in industrial and built-up areas. Stockholm: Royal college of forestry, 1970 48 p. : ill.
Bjorkman, E. The effect of fertilization on sulphur dioxide damage to conifers in industrial and built-up areas. Stockholm: Royal college of forestry, 1970 48 p. : ill.
Bjorkman, E. (1970) The effect of fertilization on sulphur dioxide damage to conifers in industrial and built-up areas, Stockholm: Royal college of forestry 48 p. : ill.
Bjorkman, E. (1970). The effect of fertilization on sulphur dioxide damage to conifers in industrial and built-up areas. Stockholm: Royal college of forestry, 48 p. : ill.
Bjorkman E. The effect of fertilization on sulphur dioxide damage to conifers in industrial and built-up areas. Stockholm: Royal college of forestry; 1970. p. 48 p. : ill.
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