Clark David P. (2009). Biotechnology (1st.). Elsevier Academic Press.
Chicago-čujuhus (17. p.)Clark David P. Biotechnology. 1st. California, USA: Elsevier Academic Press, 2009.
MLA-čujuhus (9. p.)Clark David P. Biotechnology. 1st. Elsevier Academic Press, 2009.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.