TY  - BOOK
AU  - Thomas, Jerry R.
AU  - Nelson, Jack K.
TI  - Research methods in physical activity : :  / 
SN  - 880114819
PY  - 1996///
CY  - Illinois ; 
PB  - Human Kinetics , 
KW  - EDUCACION FISICA
KW  - INVESTIGACION
KW  - SALUD
ER  -