(1989). Proceedings of the 11th conference of the International Federation of non-governmental organisations for the prevention of drug & substance abuse- towards greater efficiency in NGO activity. The Colombo Plan Bureau.
Chicago Style (17th ed.) CitationProceedings of the 11th Conference of the International Federation of Non-governmental Organisations for the Prevention of Drug & Substance Abuse- Towards Greater Efficiency in NGO Activity. Colombo: The Colombo Plan Bureau, 1989.
MLA (9th ed.) CitationProceedings of the 11th Conference of the International Federation of Non-governmental Organisations for the Prevention of Drug & Substance Abuse- Towards Greater Efficiency in NGO Activity. The Colombo Plan Bureau, 1989.
Warning: These citations may not always be 100% accurate.