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020 _a0395254639 ;0395254620
040 _aBD-DhNLB
041 _heng
082 _a510
_bDUN
245 0 _aMathematics /
_cErnest R Duncan--- et al
260 _aBoston :
_b Houghton Mifflin Co.,
_c ©1978.
300 _a342 p. :
_b ill. (some col.) ;
_c28 cm.
504 _aIncludes index
650 _a Mathematics
_927196
700 _a Duncan, Ernest R--- et al.
_927197
942 _2ddc
_cBK
999 _c26015
_d26015