TY  - BOOK
AU  - Jeffrey M Willardson (ed)
TI  - Developing the core
T2  - Sport performance series
SN  - 9780736095495
U1  - 613.71 
PY  - 2014///
CY  - United States
PB  - Human Kinetics
KW  - Exercise
KW  - Abdominal Exercises
KW  - Abdomen
KW  - Physical Education
ER  -