PENN, M. R. (2012). Introduction to Infrastructure: An introduction to civil and environmental engineering / Michael R. Penn, Philip J. Parker. John Wiley.
Chicago-referens (17:e uppl.)PENN, Michael R. Introduction to Infrastructure: An Introduction to Civil and Environmental Engineering / Michael R. Penn, Philip J. Parker. John Wiley, 2012.
MLA-referens (8:e uppl.)PENN, Michael R. Introduction to Infrastructure: An Introduction to Civil and Environmental Engineering / Michael R. Penn, Philip J. Parker. John Wiley, 2012.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.