Não informado. (1969). Food Science and Technology Abstracts. International Food Information Service.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Food Science and Technology Abstracts. Sheffield, Inglaterra: International Food Information Service, 1969.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Food Science and Technology Abstracts. International Food Information Service, 1969.
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