SpringerLink (Online service), Hayes, D. C., Stout, S. L., Crawford, R. H., & Hoover, A. P. (2014). USDA Forest Service Experimental Forests and Ranges: Research for the Long Term. Springer New York : Imprint: Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Deborah C. Hayes, Susan L. Stout, Ralph H. Crawford, και Anne P. Hoover. USDA Forest Service Experimental Forests and Ranges: Research for the Long Term. New York, NY: Springer New York : Imprint: Springer, 2014.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. USDA Forest Service Experimental Forests and Ranges: Research for the Long Term. Springer New York : Imprint: Springer, 2014.
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