000 00258nam a22001097a 4500
082 _a420 HEA
100 _aHeath, R B
245 _aImpact:
_bassignments in English
260 _aLondon:
_bLongmans, Green and Co Ltd.,
_c1967.
300 _a223p.
942 _cBK
999 _c556579
_d556579