Profit improvement by value analysis, value engineering and purchase price analysis [by] A. D. Raven. Raven, Anthony David, 1934- Value analysis (Cost control) TS168 .R37 658.15 RAP Includes bibliographical references. London, Cassell, 1971. 1971. 1971 Text xxii, 234 p. http://www.loc.gov/catdir/toc/fy0712/78879747.html eng Cassell management studies