Bears - Their Biology and Management : Seventh International Conference on Bear Research and Management. a selection of papers from the Conference held a Williamsburg, Wirginia USA and Plitvice Lakes, Yugoslavia February and March 1986
Zager Peter (Vedecký redaktor)
Knoxville : International Association for Bear Research and Management , 1987. - 394 s. : obr., tab., 26 cm
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