REFERENCES
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- United States Postal Service (USPS) . March 6 2002 . “U.S. Postal Emergency Preparedness Plan for Protecting Postal Employees and Postal Customers from Exposure to Biohazardous Material and for Ensuring Mail Security Against Bioterror Attacks.” , March 6 , Washington , D.C. : USPS .
- American Conference of Governmental Industrial Hygienists (ACGIH® . 2001 . Industrial Ventilation: A Manual of Recommended Practice , 24th ed. , pp. 3 – 6 . Cincinnati , Ohio : ACGIH .
- American Conference of Governmental Industrial Hygienists (ACGIH®) . 2001 . Industrial Ventilation: A Manual of Recommended Practice , 24th ed. , pp. 3 – 6 . Cincinnati , Ohio : ACGIH .
- American Conference of Governmental Industrial Hygienists (ACGIH®) . 2001 . Industrial Ventilation: A Manual of Recommended Practice , 24th ed. , pp. 3 – 6 . Cincinnati , Ohio : ACGIH .
- National Institute for Occupational Safety and Health (NIOSH) . 2002 . Preliminary Testing Procedure for the Evaluation of Local Exhaust Ventilation for the United States Postal Service , Cincinnati , Ohio : NIOSH . DHHS (NIOSH) Pub. No. EPHB 279a
- Hemeon , W. C. L. 1999 . Hemeon's Plant & Process Ventilation , 3rd ed. , Edited by: Burton , D. Jeff. Washington , D.C. : Lewis Publishers .