Ackzell, L. (1994). Forest regeneration by nature and man: Studies in boreal Sweden emphasizing genetic aspects. Swedish University of Agricultural Sciences, Dept. of Forest Genetics and Plant Physiology.
Παραπομπή σε μορφή Chicago (17η εκδ.)Ackzell, Lennart. Forest Regeneration by Nature and Man: Studies in Boreal Sweden Emphasizing Genetic Aspects. Umeå: Swedish University of Agricultural Sciences, Dept. of Forest Genetics and Plant Physiology, 1994.
Παραπομπή σε μορφή MLA (8th εκδ.)Ackzell, Lennart. Forest Regeneration by Nature and Man: Studies in Boreal Sweden Emphasizing Genetic Aspects. Swedish University of Agricultural Sciences, Dept. of Forest Genetics and Plant Physiology, 1994.
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