TY - BOOK AU - Preston,Edward J. AU - Coticchia,Mark E. AU - Crawford,George W. TI - CAD/CAM systems : : justification, implementation, productivity measurement / T2 - Mechanical engineering ; SN - 0824772571 U1 - 670.427 23 PY - 1984///. CY - New York : PB - M. Dekker, KW - CAD/CAM systems. ER -