APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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