Ratledge, C., & Kristiansen, B. (2002). Basic biotechnology (2nd ed.). Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Ratledge, Colin, agus B. Kristiansen. Basic Biotechnology. 2nd ed. Cambridge, U.K. ; New York: Cambridge University Press, 2002.
Lua MLA (8ú heag.)Ratledge, Colin, agus B. Kristiansen. Basic Biotechnology. 2nd ed. Cambridge University Press, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.