Não informado. (1982). Environmental Progress. American Institute of Chemical Engineers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Environmental Progress. New York: American Institute of Chemical Engineers, 1982.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Environmental Progress. American Institute of Chemical Engineers, 1982.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.