BBearsBearsde Ian Stirling, David KirshnerMateriasBearsBears, juvenile literatureEdiciones (1)Bears (1993)HarperCollins Publishers · inglésMás obras de Ian StirlingPPolar bearsPolar bearsPolar bearsBBearsBears
TThe ecology of the polar bear (Ursus maritimus) along the weThe ecology of the polar bear (Ursus maritimus) along the western coast of Hudson Bay
