This report is the documentation of the computerized version of Bureau of Mines Information Circulars (IC) 9142 and 9143 entitled "Bureau of Mines Cost Estimating System Handbook (In Two Parts)." The computerized version of the cost estimating system (pc/ces) was developed using the Lotus 1-2-3 software package (release 2.0 Or above) for microcomputers. This programming essentially duplicates the information found in IC 9142 and 9143 and affords the user the capability to manipulate cost estimates in an automated manner not readily available through the handbooks' format.
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