TY  - BOOK
AU  - Knapp,Barbara
TI  - Skill in sport: the attainment of proficiency 
U1  - 796 23
PY  - 1963///
CY  - London
PB  - Routledge & K. Paul
KW  - Physical education and training
N1  - Stamped on t.-p.: Distributed by Sportshelf, New Rochelle, N. Y; Bibliography: p. 173-184. and index
ER  -