TY - BOOK AU - Elphinston, Joanne AU - Pook, Paul TI - The Core workout: a definite guide to Swiss ball training for athletes, coaches and fitness professionals SN - 9780953985906 (paperback) AV - GV1015 ELP PY - 1999/// CY - Cardiff PB - Core Workout KW - Workout - Training N1 - Includes bibliographical references ER -