General Centificate of Secondary Education & Suffolk. County Council. Co-ordinated science lesson notes: Chemistry. Collins Educational.
Citação do estilo Chicago (17ª ed.)General Centificate of Secondary Education e Suffolk. County Council. Co-ordinated Science Lesson Notes: Chemistry. London: Collins Educational.
Citação MLA (9ª ed.)General Centificate of Secondary Education e Suffolk. County Council. Co-ordinated Science Lesson Notes: Chemistry. Collins Educational.
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