Product information "Aggression beim Hund"
About the author
Martin RütterMartin Rütter is Germany’s leading Dog expert. As a renown animal psychologist and trainer, his books alone sold over 1 million copies. He features in his own popular TV shows, that average between 300.000 and a million people watching almost daily. Martin Rütter is an advocate for a living and h... more about the author
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