000			00328nam a2200121Ia 4500
001			82347
008			170722s9999 xx 000 0 und d
100			_aWiles, Kimball
245			_aSupervision for better schools _bThe role of the official leader in program development /
250			_a2nd ed.
260			_c1964.
942			_cGEN
999			_c49853 _d49853