NGO Forum for Drinking Water Supply and Sanitation (Bangladesh) & Halder, J. (2003). Counting on catalysts. NGO Forum for Drinking Water Supply & Sanitation.
Chicago-viite (17. p.)NGO Forum for Drinking Water Supply and Sanitation (Bangladesh) ja Joseph Halder. Counting on Catalysts. Dhaka: NGO Forum for Drinking Water Supply & Sanitation, 2003.
MLA-viite (8. p.)NGO Forum for Drinking Water Supply and Sanitation (Bangladesh) ja Joseph Halder. Counting on Catalysts. NGO Forum for Drinking Water Supply & Sanitation, 2003.
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