000 00361nam a2200157Ia 4500
008 250428s9999 xx 000 0 und d
082 _a510 M42 1969
245 0 _aMathematics 7
245 0 _cMcSwain, E.T.
260 _bLaidlaw Brothers.
260 _c1969
300 _a384 pages.
526 _a500 Natural Sciences & Math
942 _2DDC
942 _cB
999 _c22556
_d22556