Não informado. (1970). Descriptions of plant viruses. Association od Applied Biologists.
Chicago-referens (17:e uppl.)Não informado. Descriptions of Plant Viruses. Warwick, Inglaterra: Association od Applied Biologists, 1970.
MLA-referens (8:e uppl.)Não informado. Descriptions of Plant Viruses. Association od Applied Biologists, 1970.
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