000
00263nam a2200097Ia 4500
008
130123s9999 xx 000 0 und d
082
_a
AND
100
_a
Anderson, R.C.
245
_a
Current Research in Instruction
260
_a
Englewood Clifts
_b
Prentia Hall.
_c
1969
999
_c
83927
_d
83927