APA-referens (7:e uppl.)
Veltkamp, M. (2007). Free form structural design: Schemes, systems & prototypes of structures for irregular shaped buildings. IOS Press.
Chicago-referens (17:e uppl.)
Veltkamp, Martijn. Free Form Structural Design: Schemes, Systems & Prototypes of Structures for Irregular Shaped Buildings. Amsterdam: IOS Press, 2007.
MLA-referens (9:e uppl.)
Veltkamp, Martijn. Free Form Structural Design: Schemes, Systems & Prototypes of Structures for Irregular Shaped Buildings. IOS Press, 2007.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.