ASA S12.60 PART 1-2010 American National Standard Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools, Part 1: Permanent Schools (Includes Interpretations : March 2014)
2010ASA S12.60 PART 1-2010 American National Standard Acoustical Performance Criteria, Design Requirements, and Guidelines for Schools, Part 1: Permanent Schools (Includes Interpretations : March 2014)