Developing the core / 
National Strength and Conditioning Association ; Jeffrey M. Willardson, editor. 
 - vii, 215 pages :  illustrations ;  26 cm. 
 - Sport performance series .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780736095495 
<br/><br/><label>LCCN: </label>2013019510 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Exercise.<br/>Abdominal exercises.<br/>Abdomen--Muscles.
<br/><br/><label>LC Class. No.: </label>GV508  / .D48 2014 
<br/><br/><label>Dewey Class. No.: </label>613.7/1