Herren, R. V. (2005). Introduction to biotechnology an agricultural revolution Ray v. Herren. Thomson.
Čikaški stil citiranja (17. izdanje)Herren, Ray V. Introduction to Biotechnology an Agricultural Revolution Ray V. Herren. Thomson, 2005.
MLA način citiranja (8. izdanje)Herren, Ray V. Introduction to Biotechnology an Agricultural Revolution Ray V. Herren. Thomson, 2005.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.