Vettel, E. J. (2006). Biotech: The countercultural origins of an industry. University of Pennsylvania Press.
Lua i Stíl Chicago (17ú heag.)Vettel, Eric James. Biotech: The Countercultural Origins of an Industry. Philadelphia: University of Pennsylvania Press, 2006.
Lua MLA (9ú heag.)Vettel, Eric James. Biotech: The Countercultural Origins of an Industry. University of Pennsylvania Press, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.