Não informado. (1958). Journal of Environmental Engineering. Society of Environmental Engineers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Journal of Environmental Engineering. Los Angeles, Calif: Society of Environmental Engineers, 1958.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Journal of Environmental Engineering. Society of Environmental Engineers, 1958.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.