000 00373nam a2200157Ia 4500
008 180710s9999 xx 000 0 und d
020 _a169700
082 _a371.1RYB
100 _aRYBURN, W.M.
245 4 _aThe principles of teaching
250 _a3rd ed.
260 _aLondon
_bOxford University press
_c1957
300 _a244 p.
650 _aEducation
942 _cS
999 _c86919
_d86919