TY - BOOK AU - Hill,Z.B. TI - Core workouts T2 - An integrated life of fitness SN - 9781422231579 U1 - 613.71 23 PY - 2015/// CY - Broomall, Pennsylvania : PB - Mason Crest , KW - Exercise - Juvenile literature N1 - Includes bibliographical references (page 58) and index ER -