Center for Compliance Information (Aspen Systems Corporation) & Lawrence, K. (1978). Noise control in the workplace. Aspen Systems Corp.
Čikaški stil citiranja (17. izdanje)Center for Compliance Information (Aspen Systems Corporation) i Kenneth Lawrence. Noise Control in the Workplace. Germantown, Md: Aspen Systems Corp, 1978.
MLA način citiranja (9. izdanje)Center for Compliance Information (Aspen Systems Corporation) i Kenneth Lawrence. Noise Control in the Workplace. Aspen Systems Corp, 1978.
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