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1111
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1112
The Rutherford "scattering" experiment as a basis of the teaching of the structure of the atom [microform]
Published 1977Visual Material -
1113
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1114
Space and storage requirements for effective clothing instruction [microform]
Published 1977Visual Material -
1115
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1116
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1117
Resistance to striped borer, Chilo suppressalis Walker, in rice varieties and some of its possible causes [microform]
Published 1977Visual Material -
1118
Leadership roles of the field technicians in organizing farmer's associations [microform]
Published 1977Visual Material -
1119
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1120