Nuffield Foundation. Secondary Science Project. (1970). Nuffield secondary science: Teacher's guide. Nuffield Foundation.
Lua i Stíl Chicago (17ú heag.)Nuffield Foundation. Secondary Science Project. Nuffield Secondary Science: Teacher's Guide. London: Nuffield Foundation, 1970.
Lua MLA (9ú heag.)Nuffield Foundation. Secondary Science Project. Nuffield Secondary Science: Teacher's Guide. Nuffield Foundation, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.