TY  - BOOK
AU  - Van Dobben De Brun C. S
TI  - Comulative sum tests:  Theory and practice   
T2  - Griffins statistical monographs and courses
U1  - X:89Q8: (B28), K8 
PY  - 1968///
CY  - New York
PB  - Hafner USA        
KW  - Quality Control
ER  -