Subjects: Chemistry--Juvenile literatureJUVENILE NONFICTION / Science & Nature / Chemistry; JUVENILE NONFICTION / Science & Nature / General
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Subjects: Appropriate technology; Technological innovations--Environmental aspects; Environmental protection--Technological innovationsSCIENCE / Environmental Science; TECHNOLOGY & ENGINEERING / Environmental / Waste Management
Subjects: Dissertations, Academic--Que´bec (Province)--BibliographyEDUCATION / Reference