Perry, P. J., & Rillero, P. (1999). 365 science projects and activities. Publications Inc.
Lua i Stíl Chicago (17ú heag.)Perry, Phyllis Jean, agus Peter Rillero. 365 Science Projects and Activities. Lincolnwood, IL: Publications Inc, 1999.
Lua MLA (9ú heag.)Perry, Phyllis Jean, agus Peter Rillero. 365 Science Projects and Activities. Publications Inc, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.