TY  - BOOK
AU  - Durham,John W.
TI  - Football's modular defense: a simplified multiple system 
SN  - 0133241793 :
AV  - GV951.18 .D87 1986
U1  - 796.332/2 19
PY  - 1986///
CY  - West Nyack, N.Y.
PB  - Parker Pub. Co.
KW  - Football
KW  - Defense
KW  - Coaching
N1  - Includes index
ER  -