American Association of Physics Teachers 1970-01-01
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American Institute of Physics 1970-01-01
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Brookhaven National Laboratory 1970-01-01
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Fermilab 1970-01-01
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Lawrence Livermore National Laboratory 1970-01-01
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Physics departments in the United States 1970-01-01
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Sandia National Laboratories 1970-01-01
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