APA (7th ed.) Zitazioa

Williams, R. (1979). The geometrical foundation of natural structure: A source book of design. Dover.

Chicago Style (17th ed.) Zitazioa

Williams, Robert. The Geometrical Foundation of Natural Structure: A Source Book of Design. Nueva York: Dover, 1979.

MLA (9th ed.) Zitazioa

Williams, Robert. The Geometrical Foundation of Natural Structure: A Source Book of Design. Dover, 1979.