O'CONNOR, J. (1956). Science vocabulary builder. Human Engineering laboratory.
Lua i Stíl Chicago (17ú heag.)O'CONNOR, Johnson. Science Vocabulary Builder. Boston: Human Engineering laboratory, 1956.
Lua MLA (9ú heag.)O'CONNOR, Johnson. Science Vocabulary Builder. Human Engineering laboratory, 1956.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.