HOLMES, N. J., LEAKE, J. B., & SHAW, M. W. (1979). Gateways to science. McGraw-Hill Bo. Co.
Lua i Stíl Chicago (17ú heag.)HOLMES, Neal J., John B. LEAKE, agus Mary W. SHAW. Gateways to Science. New York: McGraw-Hill Bo. Co, 1979.
Lua MLA (9ú heag.)HOLMES, Neal J., et al. Gateways to Science. McGraw-Hill Bo. Co, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.