Online Public Access Catalogue (OPAC)Library,Documentation and Information Science Division
“A research journal serves that narrow
borderland which separates the known from the unknown”
-P.C.Mahalanobis
620.102 C899 57978
Crawford A E Ultrasonic engineering,with particular reference to high power application London Butterworths Scientific Pub. 1955 x,344p. * Acoustical engineering Ultrasonic engineering