000 00361cam a22001217a 4500
008 180718b1954 xxu||||| |||| 00| 0 eng d
082 _aI5516x73 In8a
100 _aYlvisaker, Paul N.
245 _aNatural cement issue
_cby Paul N. Ylvisaker
260 _aNew York
_bInter-university case program
_c1954
300 _a36p
650 _aInter-university case program
999 _c500372
_d500372