Мачка — разлика између измена

* {{Cite book |ref= harv|last1last=Ring|first1first=Ken|last2=Romhany|first2=Paul|title=Pawmistry: How to Read Your Cat's Paws|url=https://books.google.com/books?id=NiMUGDoD9jUC |year=1999|publisher=Ten Speed Press|isbn=978-1-58008-111-5|pages=10}}