000 00363nam a2200157Ia 4500
008 140520s9999||||xx |||||||||||||| ||und||
100 _aFriis, J. S.
245 _aUnderstanding Mathematics Answers To Book 4
260 _aLondon
260 _bUniversity Of London Press
260 _c1969
300 _a143
350 _a0
365 _b0
365 _dRuppes
999 _c63356
_d63356