Cita APA (7a ed.)

Mattheck, C. (2007). Secret design rules of nature: Optimum shapes without computers (1a ed.). Forschungszentrum Karlsruhe.

Cita Chicago Style (17a ed.)

Mattheck, C. Secret Design Rules of Nature: Optimum Shapes Without Computers. 1a ed. Karlsruhe: Forschungszentrum Karlsruhe, 2007.

Cita MLA (9a ed.)

Mattheck, C. Secret Design Rules of Nature: Optimum Shapes Without Computers. 1a ed. Forschungszentrum Karlsruhe, 2007.