Cita APA (7a ed.)

Williams, R. (1972). The geometrical foundation of natural structures: A source book of design. Dover.

Cita Chicago Style (17a ed.)

Williams, Robert. The Geometrical Foundation of Natural Structures: A Source Book of Design. New York: Dover, 1972.

Cita MLA (9a ed.)

Williams, Robert. The Geometrical Foundation of Natural Structures: A Source Book of Design. Dover, 1972.