Não informado. (2019). Newsletter. American Society of Civil Engineers, Urban Planning and Development Division.
Chicago-referens (17:e uppl.)Não informado. Newsletter. New York: American Society of Civil Engineers, Urban Planning and Development Division, 2019.
MLA-referens (8:e uppl.)Não informado. Newsletter. American Society of Civil Engineers, Urban Planning and Development Division, 2019.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.