University of Sheffield Biomedical Information Service. (1981). Plant Biotechnology. Sheffield University, Biomedical Information Service.
Citação do estilo Chicago (17ª ed.)University of Sheffield Biomedical Information Service. Plant Biotechnology. Sheffield, Inglaterra: Sheffield University, Biomedical Information Service, 1981.
Citação MLA (8ª ed.)University of Sheffield Biomedical Information Service. Plant Biotechnology. Sheffield University, Biomedical Information Service, 1981.
警告：這些引文格式不一定是100％准確.