00605nam a2200169Ia 4500 190328s9999||||xx |||||||||||||| ||und|| 52-5662 NITIL NITIL 21st 534 R522T Richardson, E G (Ed.) Technical aspects of sound E G Richardson Amsterdam Elsevier Publishing Company 1953 2v. (xviii, 544p; xii, 412p) Contents: v.1. Sonic range and airborne sound -v.2. Ultrasonic range, under water acoustics Sound; Ultasonic transducers; Electric apparatus and appliances BKS 31837 31837 0 0 DDC 0 0 NITIL NITIL 2019-04-03 0 534 R522T 23948 2019-04-03 00:00:00 2019-04-03 BKS