Eastern Birds: Peterson Field Guides (Softcover) by Roger Troy Peterson

"In this century, no one has done more to promote an interest in the living creatures than Roger Tory Peterson, the inventor of the modern field guide.....His greatest contribution to the preservation of biological diversity has been in getting tens of millions of people outdoors with Peterson Guides in their pockets." Original. New softcover. 1987.

"In this century, no one has done more to promote an interest in the living creatures than Roger Tory Peterson, the inventor of the modern field guide.....His greatest contribution to the preservation of biological diversity has been in getting tens of millions of people outdoors with Peterson Guides in their pockets." Original. New softcover. 1987. P273.