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1[Colombo] National Science Council.ill. 25 cm.
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2Publicado 1970### CRL customization ### ?> ### Add publisher and desc details ### ?>Koḷamba : [Kālaguna Vidyā Depārtamēntuva], 1970-1972.2 v. ; 25 cm.
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3Publicado 1973### CRL customization ### ?> ### Add publisher and desc details ### ?>Koḷamba : [Kālaguna Vidyā Depārtamēntuva], 1973-v. ; 26 cm.
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4[Koḷamba] : Sabhāva,v. ; 28 cm.
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5Publicado 1987### CRL customization ### ?> ### Add publisher and desc details ### ?>Thirunelvely, Jaffna, Sri Lanka : Science Faculty, University of Jaffna, [1987?-v. : ill. ; 24 cm.