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02h0012529 20090706101659.0 s2008 cc ab frb |000|||eng | CNY100.00 NGL a-cc-hk a720 Richards, Alan B. Prediction and Control of Air Overpressure from Blasting in Hong Kong / Alan B. Richards. Hong Kong : Geotechnical Engineering Office, Civil Engineering Dept., 2008. 46 p. : ill. (some col.), maps (some col.) ; 29 cm. GEO report ; no.232 Includes bibliographical references. Blasting. ; Blast effect. GEO report / Civil Engineering Department(Hong Kong). Geotechnical Engineering Office ; no.232. aCN bNGL NGL P 251.552 G29 v232 ; rCNY100.00 ; h1 yllx0905