Não informado. (1948). International Chemical Engineering and Process Industries. Leonard Hill Technical Group.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. International Chemical Engineering and Process Industries. London: Leonard Hill Technical Group, 1948.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. International Chemical Engineering and Process Industries. Leonard Hill Technical Group, 1948.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.
