Bergholm, J. (2001). Long-term effects of enhanced nitrogen and sulphate additions on soil acidification and nutrient cycling in a Norway spruce stand. Swedish University of Agricultural Sciences.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Bergholm, Johan. Long-term Effects of Enhanced Nitrogen and Sulphate Additions on Soil Acidification and Nutrient Cycling in a Norway Spruce Stand. Uppsala: Swedish University of Agricultural Sciences, 2001.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Bergholm, Johan. Long-term Effects of Enhanced Nitrogen and Sulphate Additions on Soil Acidification and Nutrient Cycling in a Norway Spruce Stand. Swedish University of Agricultural Sciences, 2001.
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