Fahy, Frank J. Sound intensity / Frank J. Fahy. - 2nd ed. - New York : E & FN Spon, 1995. - xi, 295p. ill. ; 23 cm. Includes bibiography. ISBN: 0419198105 (pbk.) LCCN: 95069215 Subjects--Topical Terms: Sound--Measurement LC Class. No.: QC243.3.E5