Radio Corporation of America. (1947). The architects manual of engineered sound systems: Including sound symbols, definitions and specifications, with suggested applications of sound systems and typical layouts. Architectural Relations-Sound Equipment Section, Radio Corp. of America, Engineering Products Dept.
Chicago Style (17th ed.) CitationRadio Corporation of America. The Architects Manual of Engineered Sound Systems: Including Sound Symbols, Definitions and Specifications, with Suggested Applications of Sound Systems and Typical Layouts. Camden, N. J: Architectural Relations-Sound Equipment Section, Radio Corp. of America, Engineering Products Dept, 1947.
MLA (9th ed.) CitationRadio Corporation of America. The Architects Manual of Engineered Sound Systems: Including Sound Symbols, Definitions and Specifications, with Suggested Applications of Sound Systems and Typical Layouts. Architectural Relations-Sound Equipment Section, Radio Corp. of America, Engineering Products Dept, 1947.