00753cam a22002531 4500 8362658 BD-DhUL 20140919161329.0 750220s1949 nyua 000 0 eng 50006127 (OCoLC)1182804 DLC MeU-P OCoLC DLC BD-DhUL QC233 .Z9 534 ZWS Zwikker, C. (Cornelis), Sound absorbing materials / by C. Zwikker and C. W. Kosten. New York : Elsevier Pub. Co., c1949. ix, 174 p. : ill. ; 24+ cm. GBP 2.50 Sound Transmission. Kosten, Cornelis Willem, joint author. 7 cbc oclcrpl u ncip 19 y-gencatlg ddc BK 11974 11974 0 0 ddc 0 534_000000000000000_ZWS 0 NFIC 21302 DUSL DUSL GEN 1971-06-02 Purchased 534 ZWS A78430 2014-09-19 2014-09-19 BK