books.google.co.uk - For half a century, the Student Conservation Association(SCA) has inspired people of all ages to take part inprojects that enhance the environment. In settings fromcity parks to backcountry wilderness, the practicalskills presented in its pioneering handbook have beentested in the field by volunteer...http://books.google.co.uk/books/about/Lightly_on_the_Land.html?id=xD6ThtJNgLkC&utm_source=gb-gplus-shareLightly on the Land