Cain, Michael D. Inportance of Seedyear, Seedbed, and Overstory for Establishment of Natural Loblolly and Shortleaf Pine Regeneration in Southern Arkansas. Research Paper SO-268 / Michael D. Cain. -- 1.vyd. -- New Orleans : U.S. Department of Agriculture, Southern Forest, Experiment Station, 1991. -- 10 s.:3 obr., 2 tab.
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