Não informado. (1956). Chemical Engineer. Institution of Chemical Engineers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Chemical Engineer. London: Institution of Chemical Engineers, 1956.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Chemical Engineer. Institution of Chemical Engineers, 1956.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.