Coombs, Paul. IT project estimation : a practical guide to the costing of software / Paul Coombs. - Cambridge, UK : Cambridge University Press, 2003. - x, 173 p. : ill. ; 24 cm. + 1 CD-ROM (4 3/4 in.) Includes bibliographical references and index. ISBN: 052153285X (pbk) Subjects--Topical Terms: Computer software--Costs. Dewey Class. No.: 005.3 / COO