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200 1 $aSymposium on use of pozzolanic materials in mortars and concretes presented at the First Pacific Area National MeetingAmerican Society for Testing Materials, San Francisco, California, October 10-14, 1949.
210   $aPhiladelphia$cAmerican Society for Testing Materials$d1950
215   $a203 p., ill., 23 cm
225 1 $aSpecial Technical Publication$vno. 93
676   $a668
710 02$aSYMPOSIUM ON USE OF POZZOLANIC MATERIALS IN MORTARS AND CONCRETES. San Francisco, 1949.
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