Ranaweera, R.A.A.S.2015-04-082015-04-082008Ranaweera, R.A.A.S., 2008. The role of the national union catalogue in library cooperation in Sri Lanka, In: Proceedings of the International Conference on Social Sciences, Sri Lanka, University of Kelaniya, pp 257.http://repository.kln.ac.lk/handle/123456789/6841enArticle