Harker , A. H Elastic waves in solids with applications to nondestructive testing of pipelines / A.H. Harker - Bristol ; Philadelphia : A. Hilger in association with British Gas , 1988 - x , 230 pages : illustrations (some color) ; 25 cm Includes indexes Bibliography : pages 207 - 219 ISBN: 0852745826 : £22.50 (est.) LCCN: 87028884 Subjects--Topical Terms: Pipelines--TestingNondestructive testingStress wavesElastic wavesNatural gas pipelines--Testing--Great Britain LC Class. No.: TJ930 / .H374 1988