Cita APA (7a ed.)

London. Nuffield-Chelsea Curriculum Trust & Dorling, G. (1990). Nuffield science for key stage 3: Science year 9. Longman Group.

Cita Chicago Style (17a ed.)

London. Nuffield-Chelsea Curriculum Trust y Geoffrey Dorling. Nuffield Science for Key Stage 3: Science Year 9. London: Longman Group, 1990.

Cita MLA (9a ed.)

London. Nuffield-Chelsea Curriculum Trust y Geoffrey Dorling. Nuffield Science for Key Stage 3: Science Year 9. Longman Group, 1990.