Helen Harden

Helen Harden

Explorează cele 2 cărți disponibile de la acest autor.

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Coperta cărții Cambridge IGCSE® Chemistry Maths Skills Workbook - Helen Harden

Cambridge IGCSE® Chemistry Maths Skills Workbook - Helen Harden

Helen Harden

Coperta cărții Twenty First Century Science: GCSE Chemistry Student Book

Twenty First Century Science: GCSE Chemistry Student Book

Maureen Borley, Helen Harden, Philippa Gardom Hulme, Emma Palmer, Ann Tiernan, Dorothy Warren, Lynda Dunlop