000 00239nam a2200097 4500
245 _aPlastics
_cL.S. Brough
100 _aBrough, L. S.
260 _aLondon
_bHutchinson Educational
_c1973
300 _a74p. : ill. ; 24cm.
082 _a668.4
_bBRO
999 _c20566
_d20566