000 00351nam a2200145Ia 4500
008 221001s1972 xx 000 0 eng d
020 _a0045120145
082 _a512.895 MAR
100 _aMarder, L.
245 0 _aVector fields
260 _aLondon
_bGeorge Allen & Unwin
_c1972
300 _a81p.
440 _aProblem Solvers, 7
942 _2ddc
_cBK
999 _c30088
_d30088