000
00285nam a2200109Ia 4500
008
231219s1969 xx 000 0 und d
041
_a
eng
100
_a
JOHN W.BEST
245
_a
RESEARCH IN EDUCATON
260
_a
DELHI
_b
PRENTICE HILLOF INDIA PVT LTD NEW DELHI
_c
1969
300
_a
388p
999
_c
344104
_d
344104