World Health Organization. (1997). Biotechnology and world health: Risks and benefits of vaccines and other medical products produced by genetic engineering. World Health Organization.
Lua i Stíl Chicago (17ú heag.)World Health Organization. Biotechnology and World Health: Risks and Benefits of Vaccines and Other Medical Products Produced by Genetic Engineering. Geneva: World Health Organization, 1997.
Lua MLA (8ú heag.)World Health Organization. Biotechnology and World Health: Risks and Benefits of Vaccines and Other Medical Products Produced by Genetic Engineering. World Health Organization, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.