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	1.	Classroom noise measurements : the results of noise measurements carried out at several Sydney metropolitan schools / by W. Williams & J. Sinclair by Williams, W Sinclair, Judy National Acoustic Laboratories (Australia) Series: N.A.L. report ; 128 Publication details: Sydney : National Acoustic Laboratories, 1991 Availability: Items available for loan: (1)Call number: 534.83.08:371CLA. Place hold Add to cart (remove)
	2.	The attenuation of impulse peak levels with respect to distance : an interim report on a study in progress / W. Williams by Williams, W National Acoustic Laboratories (Australia) Series: N.A.L. report ; no.129 Publication details: Sydney : National Acoustic Laboratories, 1992 Availability: Items available for loan: National Acoustic Laboratories (2)Call number: 534.83 WAR, ... Place hold Add to cart (remove)

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