Não informado. (1951). Export review of the British Drug and Chemical Industries. Morgan Brothers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Export Review of the British Drug and Chemical Industries. London: Morgan Brothers, 1951.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Export Review of the British Drug and Chemical Industries. Morgan Brothers, 1951.
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