TY  - BOOK
AU  - Hughes, D.R.
AU  - Piper, F.C.
TI  - Design Theory
SN  - 9780521358729
U1  - 512.64 
PY  - 1985///
CY  - New York
PB  - Cambridge university press
KW  - MATHEMATICS
KW  - LINEAR ALGEBRA
KW  - GROUP THEORY
ER  -