Books by Spencer, Paul R. ; Helen W. HorstClick here for all books by Spencer, Paul R. ; Helen W. Horst available for purchase on-line. Finding New Trails by Spencer, Paul R. ; Helen W. Horst listed for sale on Bibliophile Bookbase. Click here for full details and on-line purchase. Bibliophile Bookbase lists over 5 million books, maps and prints including livres d'occasion, collectables, antiquarian books, out-of-print books and used books. Bibliophile Bookbase for antiquarian books, maps and prints. |