A Peterson Field Guide To Eastern Trees - Eastern United States and Canada, Including the Midwest

George A. Petrides, ecologist and field naturalist, worked with the National Park Services and taught at Michigan State University at Lansing. Petrides has written for the Peterson Field Guide series and was the recipient of an award from the Federated Garden Clubs of Michigan for A Field Guide to Trees and Shrubs. Janet Wehr, RN, devoted much of her nursing career to hospice care. Wehr has served as a member of the Therapeutic Touch International Association, the American Holistic Nurses Association, and the Saret Charitable Fund of DuPage County, IL. George A.
Petrides, ecologist and field naturalist, worked with the National Park Services and taught at Michigan State University at Lansing. Petrides has written for the Peterson Field Guide series and was the recipient of an award from the Federated Garden Clubs of Michigan for A Field Guide to Trees and Shrubs.