000
00297nam a2200121Ia 4500
100
_a
Butts, David
020
_a
06-041102-3
942
_c
BK
245
_a
The teaching of science
_b
a self-directed planning guide
260
_a
Harper & row, New york
_c
1974
082
_a
372.3 But
300
_a
xiv; 265
999
_c
9763
_d
9763