General Certificate of Secondary Education & Suffolk County Council. (1987). Co-ordinated science lesson notes: Biology. Collins Educational.
Style de citation Chicago (17e éd.)General Certificate of Secondary Education et Suffolk County Council. Co-ordinated Science Lesson Notes: Biology. London: Collins Educational, 1987.
Style de citation MLA (9e éd.)General Certificate of Secondary Education et Suffolk County Council. Co-ordinated Science Lesson Notes: Biology. Collins Educational, 1987.
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