At the Forest's Edge: Memoir of a Physician-Naturalist Hellyer, David Tirrell Sasquatch Books 0931397030 / 9780931397035 PAPERBACK Good 0931397030 Signed by author, ~Good. Light to moderate shelf wear to covers/corners. Trade paperback binding. Support Last Word Books & Press and other independent booksellers. For more information about a specific title please feel free to contact us with your questions.