Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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

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