2007 - The Seven Hills of Rome a Geological Tour of the Eternal City (Paperback) → Hardcover ISBN-13: 9780691130385 ISBN-10: 0691130388 Genres: History, Travel, Science & Math, Engineering & Transportation ? 2005 - The Seven Hills of Rome a Geological Tour of the Eternal City (Hardcover) → Paperback ISBN-13: 9780691069951 ISBN-10: 0691069956 Genres: History, Travel, Science & Math, Engineering & Transportation ? |