000
00287nam a2200109Ia 4500
100
_a
Herman, Jerry J
942
_c
BK
245
_a
Developing an effective elementary science curriculum
260
_a
Parker publishing company, inc., West Nyack
_c
1969
082
_a
375.5 Her
300
_a
243p
999
_c
2629
_d
2629