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Land, water, and mineral resources in science education /
Publicado em 1987“...Published for the ICSU Press by Pergamon Press,...”
Livro -
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Food, agriculture, and education /
Publicado em 1987“...Published for the ICSU Press by Pergamon Press,...”
Conference Proceeding Livro -
5
Land, water, and mineral resources in science education /
Publicado em 1987“...Published for the ICSU Press by Pergamon Press,...”
Livro -
6
Food, agriculture, and education /
Publicado em 1987“...Published for the ICSU Press by Pergamon Press,...”
Conference Proceeding Livro