ISBN-13: 9781492358978 / Angielski / Miękka / 2013 / 62 str.
ISBN-13: 9781492358978 / Angielski / Miękka / 2013 / 62 str.
The following section briefly describes the National Park Service Geologic Resources Inventory and the regional geologic setting of George Washington Birthplace National Monument and Thomas Stone National Historic Site.