Tonto Cliff Dwellings Guide: Tonto National Monument, Arizona 11th Edition, Revised

Southwest Parks and Monuments Association

《Tonto Cliff Dwellings Guide: Tonto National Monument, Arizona 11th Edition, Revised》，Southwest Parks and Monuments Association。这是一部关于历史、自然、旅行的公版作品，适合在安静的片刻里慢慢读下去。