General Centificate of Secondary Education & Suffolk. County Council. Co-ordinated science lesson notes: Chemistry. Collins Educational.
Citazione stile Chigago Style (17a edizione)General Centificate of Secondary Education e Suffolk. County Council. Co-ordinated Science Lesson Notes: Chemistry. London: Collins Educational.
Citatione MLA (9a ed.)General Centificate of Secondary Education e Suffolk. County Council. Co-ordinated Science Lesson Notes: Chemistry. Collins Educational.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.