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
372.7 Sm649 643 644 645 646 647 648
Smith Henry Mental arithmetic and intelligence tests Edinburgh Oliver & Boyd 6v. V1. For children 9 years old * Elementary arithmetic Mental arithmetic