000 00345nam a2200133Ia 4500
008 211214s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aRogers, P G
245 0 _aContemporary problems
250 _a1st
260 _bUniversity Tutorial Press Ltd
_aLondon
_c1952
300 _a99p p.
942 _c1
999 _c35629
_d35629