000 00516nam a2200097Ia 4500
008 120223s9999 xx 000 0 und d
082 _a371.3078 SKI
100 _aSkinner, B. F.
245 _aTechnology of teaching
260 _bPrentice-Hall, Inc.
_aNew Jersey
_c1968
999 _c151061
_d151061