Tohutoro APA (7th ed.)
Halford, N. G. (2003). Genetically modified crops. Imperial College Press.
Tohutoru Kātū Chicago (17th ed.)
Halford, N. G. Genetically Modified Crops. London: Imperial College Press, 2003.
Tohutoro MLA (9th ed.)
Halford, N. G. Genetically Modified Crops. Imperial College Press, 2003.
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