Calder, Granville. The principles and techniques of engineering estimating / by Granville Calder. - Oxford ; New York : Pergamon Press, 1976. - x, 167 p. : ill. ; Includes index. ISBN: 0080197043 Subjects--Topical Terms: Engineering--Estimates. LC Class. No.: TA183 / .C34 1976 Dewey Class. No.: 620