01042nam a2200301 a 4500 529439 529439 900660 NUST 20190926110214.0 820811s1981 dcua b 000 0 eng 81085775 0309033105 (pbk.) : $7.20 MSOHAIL DLC DLC DLC TD893.6.T7 C63 1981 363.74 19 Cohn, Louis F. (Louis Franklin), 1948- 21502 Highway Noise Barriers / Louis F. Cohn. Washington, D.C. : Transportation Research Board, National Research Council, [1981] 81 p. : ill. ; 28 cm. National Cooperative Highway Research Program synthesis of highway practice, 0547-5570 ; 87 "December 1981." Includes bibliographical references. Traffic noise. 20000 Noise barriers. 21503 Synthesis of highway practice ; 87. 21504 7 cbc orignew 2 opcn 19 y-gencatlg ddc BK 0 0 ddc 0 0 NIT NIT 2019-09-26 0 363.74 NIT-10900 2019-09-26 2019-09-26 BK