Não informado. (1951). Chemical Engineering Progress Symposium Series. American Institute of Chemical Engineers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Chemical Engineering Progress Symposium Series. New York: American Institute of Chemical Engineers, 1951.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Chemical Engineering Progress Symposium Series. American Institute of Chemical Engineers, 1951.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.