00736nam a2200193 i 4500 1/9223 780516s1977 nyua b 00010 eng 0931336007 9545 DLC GR-PeUP 338.4'7 LE Lecht, Charles Philip. The waves of change : a techno-economic analysis of the data processing industry / by Charles P. Lecht. New York : Advance Computer Techniques Corp., c1977. x, 186, [14] p. (p. 186-[200] blank for notes) : ill. ; 27 cm. Includes bibliographical references. Computer industry. Computer service industry. INST UNIPILB MAIN 20040709 338.4'7 LE 00110837 00110837 LOAN 0 1