000 00322nam a2200109Ia 4500
008 211214s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aArmstrong, J. M. A.
245 0 _aProjects and their place in education
260 _bSir Isaac Pitman and sons
_aLondon
_c1950
942 _c1
999 _c33077
_d33077