Kremkau, Frederick W. Diagnostic ultrasound : principles and instruments / Frederick W. Kremkau - 5th ed. - Philadelphia : W. B. Saunders, 1998 - 590 p. : 24 cm. ill. ; ISBN: 0721671438 RM224.78 LCCN: 97-036858 Subjects--Topical Terms: Ultrasonography National Library of Medicine Call No.: WB208 / .K92d 1998