books.google.com - Ernst and Lovich’s thoroughly revised edition of this classic reference provides the most updated information ever assembled on the natural histories of North American turtles. From diminutive mud turtles to giant alligator snappers, two of North America’s most prominent experts describe the turtles...http://books.google.com/books/about/Turtles_of_the_United_States_and_Canada.html?id=nNOQghYEXZMC&utm_source=gb-gplus-shareTurtles of the United States and Canada
