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Descrizione |
*Bears : status survey and conservation action plan / IUCN/SSC Bear specialist group, IUCN/SSC Polar bear specialist group ; compiled by Christopher Servheen, Stephen Herrero and Bernhard Peyton ; editorial assistance by Kristy Pelletier, Kana Moll, Joseph Moll
Gland ; Cambridge, UK : IUCN, c1999
X, 309 p. : ill. ; 28 cm.
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