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
551 J46 SH2007
Jeffreys Harold Earth its origin, history and physical constitution 2nd. - New York Macmillan 1929 ix,346p. * Earth science Geology