Não informado. (1974). Grain Industries Plants. Plant Management and Operations.
Chicago-referens (17:e uppl.)Não informado. Grain Industries Plants. Chicago, Ill: Plant Management and Operations, 1974.
MLA-referens (8:e uppl.)Não informado. Grain Industries Plants. Plant Management and Operations, 1974.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.