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2. Walski , T.M. Proceedings of Symposium on Cost Estimating for Water Supply Planning Studies Vicksburg, Miss. 1983
3. Lindsey , A.K. Walski , T.M. Verification of Cost Estimating Procedures in MAPS Computer Program Vicksburg, Miss. 1982
4. Energy Efficiency Through Pipe Design;Walski;Jour. AWWA,1983