000 00335nam a2200145Ia 4500
020 _a0893972711
082 _b2991
_a370
100 _a"Derek Rowntree"
245 0 _aAssessing studies
260 _bLondon : K. Page ; 1987.
_c1987
300 _a273
944 _cTR
999 _c274678
_d274678