Center for Compliance Information (Aspen Systems Corporation) & Lawrence, K. (1978). Noise control in the workplace. Aspen Systems Corp.
Chicago-viite (17. p.)Center for Compliance Information (Aspen Systems Corporation) ja Kenneth Lawrence. Noise Control in the Workplace. Germantown, Md: Aspen Systems Corp, 1978.
MLA-viite (9. p.)Center for Compliance Information (Aspen Systems Corporation) ja Kenneth Lawrence. Noise Control in the Workplace. Aspen Systems Corp, 1978.
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