TY - BOOK AU - Petersen,Christine TI - Conservation T2 - A true book SN - 0516228056 PY - 2004/// CY - New York PB - Children's Press KW - Conservation of natural resources KW - Juvenile literature N1 - Includes bibliographical references (p. 44) and index N2 - Describes some of the earth's natural resources, their importance, and how they can be safeguarded ER -