Gerfin, R. (1974). Laboratory investigations for modern physical science. Holt.
Lua i Stíl Chicago (17ú heag.)Gerfin, Richard. Laboratory Investigations for Modern Physical Science. New York: Holt, 1974.
Lua MLA (9ú heag.)Gerfin, Richard. Laboratory Investigations for Modern Physical Science. Holt, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.