Clark David P. (2009). Biotechnology (1st.). Elsevier Academic Press.
Lua i Stíl Chicago (17ú heag.)Clark David P. Biotechnology. 1st. California, USA: Elsevier Academic Press, 2009.
Lua MLA (9ú heag.)Clark David P. Biotechnology. 1st. Elsevier Academic Press, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.