Não informado. (2022). Miscellaneous Publications. Edinburgh and East of Scotland College of Agriculture.
Chicago-referens (17:e uppl.)Não informado. Miscellaneous Publications. Edinburgh, Inglaterra: Edinburgh and East of Scotland College of Agriculture, 2022.
MLA-referens (8:e uppl.)Não informado. Miscellaneous Publications. Edinburgh and East of Scotland College of Agriculture, 2022.
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