[Footnotes]

[Footnotes]
1
Pella, M. O., "The Nature of the Academic Preparation in Science of Wisconsin High School Teachers of Physics, Chemistry, Biology, and Gen- eral Science," Science Education42:106-139, March, 1958
Pella
March
106
42
Science Education
1958
Koelsche, C. L., "The Academic and Teaching Backgrounds of Secondary Science Teachers in the State of Ohio," Science Education43:139, March, 1959
Koelsche
March
139
43
Science Education
1959
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