OPAC:Department of National Museum-Sri Lanka Search for 'se,phr:"Science education series"'

Limestone resources of Sri lanka

By Abeysinghe, PB.. Natural resources energy and science authority . 60p., 21 cm

By Kumaragamage, Darshani. Natural resources energy & science authority 1986 . 82p., 21 cm

By Ravindran, V.. Natural resources energy & science authority . 58p., 22 cm

By Bogahawatte, V.T.L.. Natural resources energy 1993 . 39p., 22 cm

Colombo National science council 1980 . 42p., ill., 22 cm

By Fernando, L.J.D.. 1996 . 164p., 20 cm

By Herath, J.W.. Colombo : National Resources Energy and Science Authority , 1985 . [xiv] ,122p. ; 21cm..

By Perera, B. M. A. O. . Colombo : Natural Resources Energy & Science Authority, . vii , 74p. ; 20 cm..

By Wickremaratne, Shanthi. Colombo : NARESA, 1984 . v, 95p. ill. ; 21cm..