Não informado. (2019). Newsletter. American Society of Civil Engineers, Urban Planning and Development Division.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Newsletter. New York: American Society of Civil Engineers, Urban Planning and Development Division, 2019.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Newsletter. American Society of Civil Engineers, Urban Planning and Development Division, 2019.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.