Wertz, Halfred W. & M. Joy Callender (editors) books & textbook
Penn's Woods 1682-1982: The oldest trees in Pennsylvania, New Jersey, Delaware, and Eastern Shore, Maryland
Wertz, Halfred W. & M. Joy Callender (editors) Well-illustrated
Haverford House /1981T Hardcover / 206 Pages
isbn-10: 0910702071 / isbn-13: 9780910702072