Kaufman Field Guides
سلسلة كتب
بواسطة Kenn Kaufman
الأحدث:
2011
Birds of North America (Kenn Kaufman Focus Guides) by Kenn Kaufmann
بواسطة Lynn Hassler Kaufman Rick Bowers and Nora Bowers Kenn Kaufman
Kaufman Field Guide to Birds of North America
بواسطة Kenn Kaufman, Rick Bowers, Nora Mays Bowers