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2
-
New Chemistry for you [electronic resource] : teacher's CD-ROM for AQA / Lawrie Ryan.
- 540
- Ryan, Lawrie.
- Nelson Thornes,
- 2006.
- Cheltenham :
-
New Chemistry for you [electronic resource] : teacher's CD-ROM for Edexcel / Lawrie Ryan.
- 540
- Ryan, Lawrie.
- Nelson Thornes,
- 2006.
- Cheltenham :