000 004110000a22001570004500
008 160120t1987 xxu||||| |||| 00| 0 eng d
041 _aeng
080 _a691.32
_bS7
942 _cBK
100 _aSridorungkatum, Santi
100 _aNgourungsi, Chalemchi
245 _aTechnology manual on concrete hollow blocks
260 _aManila
_bUNDP
_c1987
300 _ax, 114p. : ill.
650 _aCONCRETE BLOCKS
999 _c125716
_d125716