Online Public Access Catalogue (OPAC)Library,Documentation and Information Science Division
“A research journal serves that narrow
borderland which separates the known from the unknown”
-P.C.Mahalanobis
000SA.5 Ew94W PH851 PH852
Ewan W D When and how to use cu-sum charts Photo print from Technometrics ; v.5, no.1, 1963, 22p.