Williams, R. (1979). The geometrical foundation of natural structure: A source book of design. Dover.
Chicago Style (17th ed.) CitationWilliams, Robert. The Geometrical Foundation of Natural Structure: A Source Book of Design. Nueva York: Dover, 1979.
MLA (9th ed.) CitationWilliams, Robert. The Geometrical Foundation of Natural Structure: A Source Book of Design. Dover, 1979.
Warning: These citations may not always be 100% accurate.