Galan, Andrej Combined ultrasound methods of concrete testing / Andrej Galan - Amsterdam : Elsevier North-Holland, 1990 - xxii, 344 p. : ill. ; 24 cm. - Developments in civil engineering ; 34 . Bibliography : p. 336-337 ISBN: 0444987444 LCCN: 90-3402 Subjects--Topical Terms: Concrete--TestingUltrasonic testing