968 resultados para United States. Office of Educational Research and Improvement


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First two issues continue the numbering of the title it supersedes and are called no. 170 and 171.

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Mode of access: Internet.

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Earlier edition issued by Extension service, Office of cooperative extension work.

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"Office of Governmental and Public Affairs, Special Programs Center"--P. 3.

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"Developed under a contract with the Science Information Exchange (SIE), Smithsonian Institution."