Osbourn, D. (2009). Introduction to Building (fourth edition.). Oxford University Press.
Chicago-stil citatOsbourn, Derek. Introduction to Building. fourth edition. Oxford University Press, 2009.
MLA-referensOsbourn, Derek. Introduction to Building. fourth edition. Oxford University Press, 2009.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.