Não informado. (1990). Genetic Engineer and Biotechnologist. Carfax Publishing.
Chicago-referens (17:e uppl.)Não informado. Genetic Engineer and Biotechnologist. Oxfordshire, Inglaterra: Carfax Publishing, 1990.
MLA-referens (8:e uppl.)Não informado. Genetic Engineer and Biotechnologist. Carfax Publishing, 1990.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.