TY  - GEN
AU  - Damaraju Raghavarao
TI  - Constructions and combinatorial problems in design of experiments
SN  - 0-471-70485-7
U1  - 511.6 RAG 
CY  - Newyork, John Wiley & Sons INC
KW  - Mathematical/ orthogonal arrays/ fractional replication
ER  -