एपीए उद्धरण

Veltkamp, M. (2013). Free form structural design: Schemes, systems & prototypes of structures for irregular shaped buildings. IOS Press.

शिकागो स्टाइल उद्धरण

Veltkamp, Martijn. Free Form Structural Design: Schemes, Systems & Prototypes of Structures for Irregular Shaped Buildings. IOS Press, 2013.

एमएलए उद्धरण

Veltkamp, Martijn. Free Form Structural Design: Schemes, Systems & Prototypes of Structures for Irregular Shaped Buildings. IOS Press, 2013.