Johannisson, C. (1996). [Superscript 15]N abundance as an indicator of N-saturation of coniferous forest. Swedish University of Agricultural Sciences.
Chicago-viite (17. p.)Johannisson, Christian. [Superscript 15]N Abundance as an Indicator of N-saturation of Coniferous Forest. Umeå: Swedish University of Agricultural Sciences, 1996.
MLA-viite (8. p.)Johannisson, Christian. [Superscript 15]N Abundance as an Indicator of N-saturation of Coniferous Forest. Swedish University of Agricultural Sciences, 1996.
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