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
160 C674s PM52
Coffey P Science of logic an inquiry into the principles of accurate thought and scientific method London Longmans 1912 v.2 v 2: Method, science and certitude * Logic