Tracking wolvesde James C. HalfpennyMateriasGray wolfAnimal tracksWolvesEdiciones (1)Tracking wolves (2010)A Naturalist's World · inglés · ISBN 9781456306380Más obras de James C. HalfpennyA field guide to mammal tracking in North AmericaA field guide to mammal tracking in western America1986SScats and tracks of Alaska, including the Yukon and British Scats and tracks of Alaska, including the Yukon and British Columbia2007
SScats and tracks of Alaska, including the Yukon and British Scats and tracks of Alaska, including the Yukon and British Columbia2007
