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1
Memoirs of the American Academy of Arts and Sciences
Boston : American Academy of Arts and Sciences, 1957

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Periodico
2
Pennsylvania clearinghouse on methodology in elementary science.
Bloomsburg, Pa. : Bloomsburg State College, 1969

This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Periodico
3
Science and children.
Washington, D.C. :; Arlington, VA :; Arlington, VA : National Science Teachers Association,; National Science Teachers Association; National Science Teaching Association 1963

Periodico
4
American scientist.

Periodico
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