TY  - RPRT
TI  - Fractional factorial designs for the 12 superscript s x 2 superscript n series for n = 12 (1) 16 and s= 6, 7, 8 
AU  - Burton, R C
AU  - Miller, F L
AU  - Pettigrew, H M
PY  - 1955
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS report ; 4412
DO  - 10.6028/NBS.RPT.4412
ER  -