NATIONAL CONCRETE MASONRY ASSOCIATION. United States. SOUND REDUCTION PROPERTIES OF CONCRETE MASONRY WALLS; REPORT OF SOUND TRANSMISSION LOSS AND AIR FLOW RESISTANCE MEASUREMENTS ON CONCRETE BLOCK WALLS.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)NATIONAL CONCRETE MASONRY ASSOCIATION. United States. SOUND REDUCTION PROPERTIES OF CONCRETE MASONRY WALLS; REPORT OF SOUND TRANSMISSION LOSS AND AIR FLOW RESISTANCE MEASUREMENTS ON CONCRETE BLOCK WALLS. BASED ON REPORTS SUBMITTED BY THE RIVERBANK ACOUSTICAL LABORATORIES ARMOUR RESEARCH FOUNDATION, (1959?).
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)NATIONAL CONCRETE MASONRY ASSOCIATION. United States. SOUND REDUCTION PROPERTIES OF CONCRETE MASONRY WALLS; REPORT OF SOUND TRANSMISSION LOSS AND AIR FLOW RESISTANCE MEASUREMENTS ON CONCRETE BLOCK WALLS.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.