00730nam a2200169 a 450000500170000000800410001703500150005811101260007324500770019926000590027630000110033550000680034665000410041465000280045571000400048371000370052320260818165814.0                                          a.b104614742 aEngineering Foundation Conference on Need for National Policy for the Use of Underground Spaced(1973 :cBerwick Academy)10aNeed for national policy for the use of underground space :bproceedings  aNew York :bAmerican Society of Civil Engineers,c1973  a232 p.  aHeld at Berwick Academy, South Berwick, Maine, June 25-29, 1973 0aUnderground constructionxCongresses 0aFoundationsxCongresses20aAmerican Society of Civil Engineers20aEngineering Foundation, New York