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040 _aMAIN
041 _aEnglish
082 _a515.9
_bBEA
100 _aBeale, J.
245 _aIntroduction to complex numbers for technical students
_b: programmed text
260 _aLondon
_bGeorge allen
_c1966
300 _a420p.
650 _aComplex analysis
650 _aMathematics
942 _cBK
999 _c31848
_d31848