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1Urbana : Elementary-School Science Project, c1963-1965.6 v. : ill. ; 28 cm.“...University of Illinois (Urbana-Champaign campus). Elementary-School Science Project...”
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2出版事項 1963Berkeley, University of California Printing Dept., 1963, c1961-v. illus. 28 cm.“...Elementary School Science Project...”
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3出版事項 1962Urbana, Ill. : University of Illinois, Elementary School Science Project, 1962.6 v. : ill. ; 28 cm.“...University of Illinois (Urbana-Champaign campus). Elementary-School Science Project...”
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4出版事項 1969New York : Harper & Row, ©1969.6 volumes : illustrations ; 26 cm.“...Elementary School Science Project...”
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5出版事項 1966Urbana, Ill. : University of Illinois, [c1966]6 v. illus. 28 cm.“...University of Illinois (Urbana-Champaign campus). Elementary-School Science Project...”
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6出版事項 1961Urbana : The University, c1961.3 v. : ill. ; 28 cm.“...University of Illinois (Urbana-Champaign campus). Elementary-School Science Project...”
