University of Sheffield Biomedical Information Service. (1981). Plant Biotechnology. Sheffield University, Biomedical Information Service.
Čikaški stil citiranja (17. izdanje)University of Sheffield Biomedical Information Service. Plant Biotechnology. Sheffield, Inglaterra: Sheffield University, Biomedical Information Service, 1981.
MLA način citiranja (8. izdanje)University of Sheffield Biomedical Information Service. Plant Biotechnology. Sheffield University, Biomedical Information Service, 1981.
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