After considering all the variables the three that ended up on the top of the list were national audubon society field guide to north american trees eastern region nas peterson field guide to eastern trees pfg and national wildlife federation field guide to trees of north america nwf i live in indiana so all three fit my location. National audubon society field guides more than 18 million nature lovers have chosen the audubon field guides as their go to nature reference with twenty different guides covering birds wildflowers trees mammals insects fish and much more every nature lover can find a comprehensive guide for whatever their interest. A 320000 donation match expires soon a 80000 donation match expires soon audubon is a nonprofit organization committed to protecting birds and the places they need we rely on our members for support you can help us by making a donation today. About national audubon society field guide to north american trees e the most comprehensive field guide available to the trees of north americas eastern region a must have for any enthusiasts day pack or home library from the go to reference source for over 18 million nature lovers. National audubon society field guide to north american trees eastern region by elbert l little alfred a knopf 1980 582 is the audubon societys field guide to north american trees my rating 7 10 finished 2005
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